Of course.当然
That's all right.没关系
Not at all.没关系
No problem.没问题
Pardon?什么
be quite.安静
keep quite.保持安静
act out.表演
try to use.尽量使用
give a talk.作报告
have fun.玩得愉快
have a good time.玩得愉快
all over the world.全世界
have a meeting.开会
look after.照顾
look back.回顾
look down upon.轻视
look up.向上看;在字典中查阅
look out.小心
look over.检查
look for.寻找
look like.看起来像
have a try.试一试
feel tired=be tired.感到疲劳
think of.想一想;想到