Mononitration
一硝基化
🗣️ 情景例句
I've been invited to give a talk at the conference.
我已受邀在大会上发言。
Time tames the strongest grief.
时间可以冲淡最强烈的悲伤。
who produced it with a flourish and pointed out a microscopic 'o' beside the time of the arrival of the train at his station;
站长拿着时刻表一挥手，指着那趟列车到站时刻旁边一个很小的圆圈标记。