have looked very important 已显得非常重要
Since the earliest times, people have looked up at the stars, the moon and the planets.
自人类诞生之初起,人们就仰望星星、月亮和行星。
Researchers say Raptorex might have looked like a toy version of the huge creature.
VOA: special.2009.10.13
Other studies have looked at films of people who have just won Olympic gold medals.
其他的一些研究,关于刚获得奥林匹克金牌的人。
So far we have looked only at the formation of single bonds.
到目前为止,我们还只是,看到了成单键的情况。
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