Hqs
5-磺基-8-羟基喹啉（5-sulfo-8-hydroxyquinoline）
🗣️ 情景例句
Is this what I ordered?
这是我点的吗？
He looks much younger than he is.
他看起来比他实际上年轻得多。
Who's going to look after the house?Who's going to look after the garden?
谁来看管房子啦，谁来照料花园啦，