Operons
(operon 的复数) n.[生]操纵子
🗣️ 情景例句
and tell the Levinsons we have their cute little spaniel.
告诉Levinson夫妇他们可爱的小猎犬在我们这。
A contented mind is perpetual feast.
知足常乐。
Is there anything else that I ought to get?
我还该弄点别的什么东西吗？