再说，只能提前一周买火车票 。

What's more, you can only buy train tickets one week in advance.

Source: Tatoeba

Sentence Composition

1 再说 zàishuō
  1. to say again
  2. to put off a discussion until later
  3. moreover
  4. what's more
  5. besides
2 只能 zhǐnéng
  1. can only
  2. obliged to do sth
  3. to have no other choice
3 提前 tíqián
  1. to shift to an earlier date
  2. to do sth ahead of time
  3. in advance
=4 一周 yīzhōu
  1. one week
  2. all the way around
  3. a whole cycle
=4 一周 yīzhōu
  1. a round; a whole cycle
  2. a week
5 买 mǎi
  1. to buy
  2. to purchase
6 火车票 huǒchēpiào train ticket