Learn Hardcore Chinese: wǒmen mànmàn de zǒu, wǒ hái yào kàn yíxià. - Let’s walk slowly; I still want to take a look.

Use 地 (de) to link a modifier to a verb: 慢慢地走 “walk slowly.”
Use 得 (de) after a verb to describe the manner/degree of the action: 走得很慢 “walk (in a way that is) very slow.”
Use 的 (de) to link a modifier to a noun: 慢慢的歌 “a slow song.” Note: In casual writing you’ll see 的 used for all three, but on tests and in careful writing keep them distinct.

Can I drop 地 and just say 慢慢走?

Yes. 慢慢走 is very common in speech and perfectly natural. Adding 地 is more “by the book,” especially in formal writing. Meaning is the same.

What’s the difference between 慢慢地走 and 走得很慢?

Both mean “walk slowly,” but:

慢慢地走 presents “slowly” as an adverb modifying “walk.”
走得很慢 is a result/degree complement after the verb, focusing on the state/degree of slowness. In everyday use they are often interchangeable. With longer verb phrases, the adverbial form (慢慢地) is usually smoother: 他慢慢地走进房间.

What does 还 mean in 我还要看一下? Is it “still,” “also,” or “again”?

Here 还 (hái) can mean “still/in addition.” It signals an extra action on top of walking slowly: “I still/also want to take a look.”
For “again,” use 再 (future/desired repetition) or 又 (past/actual repetition):

我再看一下 “I’ll look again (later).”
我又看了一下 “I (once) again took a look.”

Why use 要 here? How would 想, 得, or 需要 change the meaning?

要: firm intent/plan, sometimes “going to.” 我还要看一下 = “I still want to / I’m going to take a quick look.”
想: milder desire. 我还想看一下 = “I’d still like to take a look” (softer).
得/需要: obligation/necessity. 我还得/需要看一下 = “I still have/need to take a look.”

What exactly does 一下 add in 看一下?

一下 (yíxià) softens and shortens the action: “have a quick look / look briefly.” It’s very common to make requests or statements sound lighter: 问一下、试一下、想一下. With an object: 看一下这个 “take a quick look at this.”

Why is 一下 pronounced yíxià, not yīxià?

Tone sandhi: 一 changes to second tone (yí) before a fourth-tone syllable (下 xià).
General rule:

Before 4th tone: yí (e.g., 一下 yíxià)
Before 1st/2nd/3rd tones: yì (e.g., 一杯 yì bēi)
When emphasized as “one” (the number), it can stay first tone.
Similarly, 不 becomes bú before a 4th tone (e.g., 不要 búyào).

Are 看一下, 看一看, and 看看 interchangeable?

Mostly yes; all mean “take a quick look.”

看一下: neutral, common in instructions/polite requests.
看一看: slightly more deliberate, also polite.
看看: casual/colloquial. Also useful: 看一眼 “take a (single) glance.”

Is it okay to switch subjects between clauses like 我们…，我… without a conjunction?

Yes. Chinese often links clauses paratactically (by just placing them side by side). 我们慢慢地走，我还要看一下 is natural: first clause topic “we,” second clause switches to “I.” The comma signals a pause/shift.

What does the comma mean here? Do I need 所以, 然后, or 而且?

The Chinese comma often just marks a pause and can link related actions or thoughts. You don’t need a connector. If you want to be explicit:

Sequence: 然后
Cause–effect: 所以
Addition: 而且/并且
But they’re optional here.

How do I pronounce 慢慢? Is the second 慢 neutral?

Both are heard:

Careful/clear: mànmàn
Everyday speech: màn·man (second syllable neutral tone)
Meaning doesn’t change. As an adverb “slowly,” the neutral second syllable is very common.

Is 地 pronounced de or dì in 慢慢地走?

It’s the structural particle de (neutral tone). dì is the noun “earth/ground/place” (地 as an independent word). Here it’s the particle, so pronounce de.

Does 走 mean “to leave” too? And is 慢慢走 a farewell?

Yes, 走 can be “to walk” or “to leave.” 慢慢走 is a common polite farewell to someone who’s leaving, like “Take care on your way.” In your sentence with 我们, it simply means “walk slowly.”

If I want to suggest “let’s walk slowly,” should I add 吧 or use 咱们?

Yes. Add 吧 to soften it into a suggestion: 我们慢慢地走吧.
In northern speech, 咱们 (inclusive “we”) is also common: 咱们慢慢地走吧.

Is 一下 the same as 一会儿?

Not quite.

一下 attaches to the verb to mark a brief/try action: 看一下.
一会儿 is a time phrase meaning “a little while / in a moment / for a while”: 等一会儿, 我们聊一会儿.
They can co-occur: 等一会儿我看一下 “In a bit I’ll take a quick look.”

Can I drop the second 我 to avoid repetition?

Yes: 我们慢慢地走，还要看一下。 Chinese often omits repeated subjects when clear from context. Keep it if there’s any risk of ambiguity.

Where does 一下 go? Can I say 我还要一下看?

Place 一下 after the verb: 看一下 or 看一看.
Incorrect: 一下看 (unless in a special structure like 把: 把这个看一下). With an object: 我还要看一下这个。

Do I need 了 anywhere (e.g., 我还要看一下了)?

No. 要 already expresses intent/plan; 了 would mark completion or a change-of-state, which doesn’t fit. If anything, you might see 呢 to emphasize an ongoing intention: 我还要看一下呢。