Nitronate
氮酸酯
🗣️ 情景例句
Remind me to leave at twelve forty-five.
提醒我十二点四十五分走。
By the time we got there,the play had already begun.
等我们到那里，戏已经开始了。
Are you free later today, Mr. Green?
您今天晚些时候有空吗，格林先生？