Nitrosamino-
[化] 亚硝氨基
🗣️ 情景例句
Thank you for calling us.
谢谢你打电话给我们。
When will the contract be ready?
合同何时准备好？
Yu Yan and Jim were neck and neck. They both passed on their sticks at the same time.
余延和吉姆跑得一样快。