Multigas
多气体多量程红外气体分析器
🗣️ 情景例句
the autograph of somebody who may be famous someday.
将来有可能成名的人的亲笔签名。
To run away from his sister
从他姐姐那儿逃走
I had a little accident last Sunday.
上星期天我出了个小事故。