Topoisomerase
局部异构酶
🗣️ 情景例句
Being a mother is not easy,
当一个母亲真不容易，
I remember the girl whose father owns a tailor shop.
我记得那个女孩的父亲有一家裁缝店。
But you said you'd come out to dinner with me. We fixed it.
但你说过你愿意出来和我共进晚餐的。我们已经决定了的。