Chromatosheet
(薄层)色谱板
🗣️ 情景例句
It's the first thing people will see when they come in.
这是人们走进来所看到的第一 件东西。
This is an identification card.
这是一张身份证。
He had a gift for thinking up ways of making political points.
他有一种天赋，能想出很多办法阐明其政治观点。