第二年第五十七天

[nnozomi]

语法
不知道 X (question word) 好, don't know how/why/who/etc. to do X (well)
https://resources.allsetlearning.com/chinese/grammar/Expressing_not_knowing_how_to_do_something_using_%22hao%22

词汇
等到, wait until/by the time (pinyin in tags)
Usable both as a verb and as a preposition (?), I think
https://mandarinbean.com/new-hsk-2-word-list/

Guardian:
[no 不知道...好]
但是我向你们保证，等到游戏结束的时候，你们就会懂了, but I guarantee you, by the time the game is finished, you will understand.
可有人会赢，而且我已经等到他了, but there's someone who can win, and I've already waited until he's come [sloppy translation for the sake of literal 等到]

Me:
我想买一台新收音机，但是我不知道去哪里好。
等到你喝完茶，你就会睡觉。