Cephalothecin
复端孢菌素
🗣️ 情景例句
and she belongs to Mr. and Mrs. Levinson.
它是Levinson夫妇家的狗。
We only live once,, but if we work it right once is enough.
我们生命只一次，好自为之一次足矣。
We'll stay here with you until help comes.
在有人来救援前，我们要留在这儿。