介绍:
Lesson 30 What must I do? 我应该做什么？
单词及例句
1 empty ['empti] v.倒空，使…变空
eg. Please empty this room for me. 请帮我把这个房间空出来。
2 read [ri:d] v.读
eg. I can't read your writing. 我看不懂你写的东西。
3 sharpen ['ʃɑ:pən] v.削尖，使锋利
扩展：sharpener n. 卷笔刀；磨刀器
eg. Sharpen all your blunt knives. 把你所有钝的刀子都磨一磨。
4 put on ['put ɒn] 穿上
eg. She put on her coat and went out. 她穿上外套，出去了。
