Micromolecule
小分子
🗣️ 情景例句
It's Carl's birthday,
今天是Carl的生日，
Channel 5 is off the air now.
五频道已经停止播放。
The children were leaving school on Tuesday when they saw a truck.
星期二，孩子们正放学回家，这时，他们看见一辆卡车。