rinzibin ni yoidome wo motte iku.

It is read:

りんじびん に よいどめ を もっていく。

Word by word:

• 臨時便 = りんじびん
• に
• 酔い止め = よいどめ
• を
• 持っていく = もっていく

臨時便 means an extra, special, or temporary service that is added outside the normal schedule.

• 臨時 = temporary / special / extra
• 便 = service, trip, flight, run

Depending on context, 臨時便 could be:

• an extra bus
• a special train service
• an additional flight
• another temporary transport service

So the exact English word may change depending on what kind of transportation is being discussed.

Here, に marks the destination or target of the action 持っていく.

持っていく means to take something to a place or target, so the place/target is marked with に.

So:

• 臨時便に = to / onto / for the special service

In natural English, this might be translated in different ways depending on context:

• take motion-sickness medicine on the extra bus
• bring motion-sickness medicine for the special flight
• take anti-nausea medicine to the extra service

Japanese に is not always translated the same way every time.

Usually, に is more natural here.

Both に and へ can relate to direction, but they feel a little different:

• に points to a more specific destination/target
• へ emphasizes movement toward something

With 持っていく, に is very common because you are taking something to a particular place or target.

So:

• 臨時便に酔い止めを持っていく = natural
• 臨時便へ酔い止めを持っていく = possible in some contexts, but less natural for many learners’ intended meaning

Because 酔い止め is the direct object of 持っていく.

The thing being taken is marked with を.

So:

• 酔い止めを持っていく = take motion-sickness medicine

This follows a very common pattern:

[thing] を 持っていく
= take [thing]

Examples:

• 水を持っていく = take water
• 傘を持っていく = take an umbrella
• 薬を持っていく = take medicine

Literally, 酔い止め is something like a stopper/preventer of nausea or motion sickness.

It is made from:

• 酔い = sickness/dizziness/nausea from motion, or being drunk
• 止め = stopper / prevention

In everyday use, 酔い止め usually means:

• motion-sickness medicine
• anti-nausea medicine for travel

So even though the literal parts are helpful to know, you should usually learn 酔い止め as one vocabulary item.

Not really. While it comes from:

• 持つ = to hold / carry
• 行く = to go

the combination 持っていく works as a set expression meaning:

to take something somewhere

So in natural English, it is not usually translated word-for-word as hold and go.

The て-form connects the verbs:

• 持つ → 持って
• 行く

This creates the sense of:

• carry it and go
• more naturally: take it along

So 酔い止めを持っていく means take motion-sickness medicine along or bring motion-sickness medicine.

The difference is based on direction relative to the speaker’s point of view.

• 持っていく = take something away from here to another place
• 持ってくる = bring something to here or toward the relevant location

Examples:

• 学校に弁当を持っていく = take a lunch to school
• 学校に弁当を持ってくる = bring a lunch to school

In English, both may sometimes be translated as bring, so the Japanese distinction can feel tricky at first.

In this sentence, 持っていく suggests taking the medicine from the current place to the 臨時便.

Both are used.

You may see:

• 持っていく
• 持って行く

They mean the same thing here.

Writing いく in hiragana is very common, especially when it follows a て-form. Many writers do this because it looks smoother and is easier to read.

So:

• 持っていく = very common
• 持って行く = also correct

The subject is omitted, which is very normal in Japanese.

Japanese often leaves out information that is understood from context, especially:

• the subject
• the topic
• sometimes even the destination or reason

So this sentence could mean:

• I’ll take motion-sickness medicine on the special service.
• You should take motion-sickness medicine on the extra bus.
• We’re taking motion-sickness medicine for the special flight.

The exact subject depends on the situation.

As a standalone sentence, it can sound like:

• a note
• a plan
• an instruction
• part of a conversation where the subject is already known