When is the best time to ring New York?
什么時(shí)間給紐約打電話最好？
It was a difficult situation, when you think about it.
仔細(xì)想來，當(dāng)時(shí)處境是很困難的.。
When they set out they were well prepared.
他們出發(fā)時(shí)有很充分的準(zhǔn)備。
Text me when you're on your way.
路上給我發(fā)短信吧。
When do the new regulations come into force?
新規(guī)章什么時(shí)候開始執(zhí)行？