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9. Stand back! You're stepping on my toes.
向后站!你踩在我的脚趾头上了。
10. Put the book back on the shelf when you've finished it.
书读完后，要放回原处。
11. Their travel plan was cancelled because of the bad weather.
因为天气不好，他们的旅行计划取消了。
12. Smoking is bad for health.
吸烟对身体有害。
13. He lost his travelling bag when he crossed the desert.
他在穿越沙漠的时候丢失了他的旅行袋。
14. The bread is baking in the oven.
烤箱里正在烤面包。
15. The dolphin balanced the ball on its nose.
海豚用鼻子顶着球，使其保持平衡。
16. You have to balance the advantages of living in a big city against the disadvantages.
你必须权衡住在大城市的利与弊。
