chúle yùfùkuǎn yǐwài, hái yào xuǎnzé fùkuǎnfāngshì.

to need to

Breakdown of chúle yùfùkuǎn yǐwài, hái yào xuǎnzé fùkuǎnfāngshì.

• 除了chúle: besides
• 以外yǐwài: apart from
• 还hái: also

Questions & Answers about chúle yùfùkuǎn yǐwài, hái yào xuǎnzé fùkuǎnfāngshì.

What grammar pattern is 除了……以外，还……?

This is a very common pattern meaning besides / apart from / in addition to ..., also ...

So in this sentence:

• 除了预付款以外 = apart from the advance payment
• 还要选择付款方式 = you also need to choose a payment method

A useful template is:

• 除了 A 以外，还 B
• Besides A, also B
• In addition to A, B as well

The key point is that this pattern is additive here, not exclusive.

Why is 还 used here?

还 means also / still / in addition here.

In this sentence, it works together with 除了……以外 to show that there is one more thing that needs to be done.

So:

• 除了预付款以外，要选择付款方式 = understandable
• 除了预付款以外，还要选择付款方式 = more natural and clearer, because 还 explicitly marks the added action

When learners see 除了, it helps to look for 还 / 也 / 都 later in the sentence, because those words often complete the pattern.

Does 要 mean want here?