Chromatopencil
色谱(固定相)棒
🗣️ 情景例句
Mr. Lu, we are very pleased to be able to offer this product to you.
陆先生，我们很高兴能提供这个产品给您。
Where can I get my baggage?
我到哪里去拿我的行李呢？
How old is she?
她多大了？