Alkynes
[化] 炔烃
🗣️ 情景例句
What floor is the shoe department on?
鞋部在几层？
Time works wonders.
时间可以创造奇迹。
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。