Streptamine
链霉胺
🗣️ 情景例句
You should perform what you promised to do.
你应该履行诺言。
I meet the boy whose aunt is a housemaid.
我遇到那个男孩的姑妈是家庭主妇。
yet following her regular practice she had shut them before going out.
而她记得在出门买东西前，她按老规矩是把房门一一锁上的。