重点讲解:[qh]
1. be based on 以…为基础;
例句:This play is based on a true story.
这出戏以真事为基础 。
2. together with 连同…一起;还有;加之;
例句:He sent me the book, together with a letter.
他把书寄给我,还附上了一封信 。
3. pair up (尤指为共同做事)(使)成对,(使)配对;
例句:They asked us to pair up with the person next to us and form teams.
他们让我们与身边的人配对组成小组 。
n. 大圆石,巨砾