Chromosorb
红色硅藻土色谱载体
🗣️ 情景例句
I have to go out and hand out fliers.
我要出去派传单。
But last year we had a big one.
但去年下了大雪。
always assuming,of course, that the sea is calm.
当然，这一切只有在大海风平浪静的情况下才有可能。