学生需要有人指导他们来应付为他们所开设的一大堆课程，从中选出最适合他们的课程。
Students need someone to steer them through the mass of courses offered to them, to choose the best ones for their needs.
我最倒霉了！从3个兄弟中选一个，而我却挑了个最笨的！
Just my luck! Three brothers to choose from and I pick the stupid one.
老师说他将要从我们中选一个人作他的助手。
The teacher said that he would like to choose an assistant among us.
