Restriction enzyme
限制性内切酶
🧩 词语组成解析
🗣️ 情景例句
You and Mommy used to take me on the ferryboat.
你和妈妈常带我坐渡船。
Thank you for directions.
感谢你为我指路。
Don't cry, I said. I talked to her. But she looked at me and cried harder and harder.
“别哭呀！”我跟她说话，可是她看着我，哭得越来越厉害了。