Chromosorb
红色硅藻土色谱载体
🗣️ 情景例句
My browser crashed yesterday, so I can't see any updated information.
我的浏览器坏了，所以我看不到任何最新的消息。
If there's anything else I can do, please call on me.
如果有任何事情我能效劳的话，请打电话给我。
There were twenty cars in the race.
参加比赛的有20辆汽车。