Sepharose
琼脂糖(凝胶)
🗣️ 情景例句
What do you call this? A tow year old child could have done a better job!
你是怎么回事？就连两岁的孩子都可以比这做得更好！
When you're down and blue, go to a comedy.
你灰心丧气的时候，去看看喜剧。
We're going to be placing a large order soon.
我们马上就会下一张大订单了。