Gentiamarin
龍膽苦苷
??? 情景例句
How's your son getting on with his English?
你兒子的英語(yǔ)學(xué)得好嗎？
What does you want to buy?
你要買什么？
Some of the things were hundreds of years old.
展出的一些東西已有數(shù)百年的歷史了。