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BEIJING, June 25 (Xinhua) -- The Shenzhou-20 crew members, who are currently on board China's space station, will conduct a second round of extravehicular activities within the next few days, the ...
在这句话中,“experiments” 指的是爱迪生在成功发明电灯炮之前做的 “多次科学实验”。 因为爱迪生是通过一次又一次的实验来发明电灯泡这种新的事物,所以这里应该用 “experiments”。 说完了 “experiment”,我们继续来看单词 “test”—— 试验、测试、检查。