The preparatory work for the conference had been undertaken at two meetings of experts.
在两次专家会谈中，人们已经着手了会议的筹备工作。
2
We are pushing our kids to get good grades, take SAT preparatory courses and build resumes so they can get into the college of our first choice.
我们督促孩子取得好成绩、参加 SAT 预备课程、制作简历，这样他们就能进入到我们首选的大学。
3
To attach the preparatory to the senior school these three classes were known officially, on speech days and in reports, as upper, middle, and lower second.