1.fill v. 1．装满．填（空）2．供应
(be) filled with 装满，填满，挤满，排满(full of; with all the space occupied)
例句：Chinese stores sell delicious round cakes filled with meat for the Moon Festival
fill in for 代替（参照 fill one's position, fill one's place, fill one's vacancy, fill one's shoes, take one's place, take the position, take the place of, take over...)
A:Roger was feverish yesterday. I'm not sure if he'll be up to attending today's meeting.
B:Then can someone fill in for him?
例句：Say, Dave, can you fill in for me tonight at the restaurant? I'd like to GO out of town.
2.possible adj. 可能的
as soon as possible 尽快
例句：Diane has mailed the form and the fee, and has requested that her high school transcript and recommendations be sent as soon as possible.
3.twice adv. 两次
think twice (before you leap)再想一想，三思而行(to reconsider a decision one has taken or think carefully before doing sth.)
A:I'm going to take five courses this semester and I want to graduate as soon as possible.
B:Oh! You should think twice about that. I wonder if you can manage so many courses.