Acetylenedihalide
[建] 乙炔化二卤, 恒二卤代乙烯, 二卤乙烯
🗣️ 情景例句
Frankly,
坦白地说，
He is in conference.
他正在开会。
He made only six films between 1940 and 1966 and only the first of these is still popular today.
1940年至1966年，他仅制作了6部电影，其中只有第一部至今仍然受到欢迎。