She worked like a demon all through rehearsals.
她每次排演时始终精

。
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A fascinating thing about Earth, which may make it unique, is that all through its very long existence, all four and a half billion years, variations in the luminosity of the Sun have been compensated for by a variable greenhouse effect.
地球有一件迷人
事情,这可能使它独一无二,那就是在它漫长
存在过程中,在45亿年

里,太阳亮度
变化被可变
温室效应抵消了。
世界(原版)
第一本英语儿歌书