1、
2、
Energy can flow across the glass but I put a lid on top, and so the water can't get out.
能量可以穿过杯壁流动，但是我在顶上加了盖子，所以水不能跑出来。
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3、
A glass of water might be good coz often if you are talking a lot you tend to lose your voice.
不过一杯水还是可以接受的，因为如果你一直讲话，到最后会失声。
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