如果我们有岩石样本用于研究，我们就能知道，这些小陨石坑是在行星形成的最后阶段被撞击形成的，还是后来的流星雨造成的。
If we had rock samples to study, we'd know whether these small craters were formed by impacts during the final stages of planetary formation, or if they resulted from later meteor showers.
在四月的雨里——你的最后一个四月。
房子是他找的，一套风吹雨淋的木板平房，每月八十块钱。 但即将办妥的最后一刻，公司调他去了华盛顿，于是我只身一人前往郊区居住。
He found thehouse, a weather-beaten cardboard bungalow at eighty a month, but at the lastminute the firm ordered him to Washington, and I went out to the country alone.
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