例句：
I could come next week, or the week after.
我可能下周来，或者再下一周。
I called several times, but only got the answering machine.
我打了几次电话，但只有电话答录机答话。
The gene is activated by a specific protein.
这种基因由一种特异性蛋白激活。
She added a PS asking me to water the plants.
她加了一句附言，要我浇花。
The course is 1 year FT, 2 years PT.
该课程全日制学习一年，非全日制学习两年。
He didn't give an adequate answer to the question.
他没有对这个问题作出满意的答复。
