Tricyanomethide
三氰甲基化合物
🗣️ 情景例句
And they don't ask a married couple with no children Why don't you have any children?.
他们也不会问结了婚没有孩子的夫妇“你们为什么不要孩子？”。
It is better to be safe than sorry.
事后追悔不如事前稳妥。
Hi, Ann!
你好，安！