Prindamine
二氢三甲基苯基
🗣️ 情景例句
He is not up to the job.
他不能胜任这个工作。
I was born anAmerican; I live an American; I shall die an American.
我生下来是美国人，活着是美国人，死时也是美国人。
Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop.
反之，如果恒星很小，维持生命的行星就要在离恒星很近的轨道上运行，而且要有极好的条件才能使生命得以发展，