Polychlorosubtilin

多氯枯草菌素

🗣️ 情景例句

What storage capacity do you need?
你想要多大容量的硬盘?
The master always exacts quality work from his students.
老师常常要求学生们认真踏实的完成功课。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前,这些鸟没有天敌,因此,它们不需要发育飞行的翅膀。
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