We will make all the necessary arrangements in the course of the morning to-morrow.
我们将在明天上午作出一切必要的安排。
Of course we help each other if necessary.
当然,如若需要,我们必定相互帮助。
当然,这是必要的。
This material will be necessary to do the listening exercises for the course, which is sort of the backbone of the course.
做听力练习时我们必须使用这些材料,听力训练是课程的核心内容
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