Dichroine b
[化] 黄常山碱
🧩 词语组成解析
常山碱
🗣️ 情景例句
They told me that you had quit.
他们告诉我你辞职了。
Are you going to use cash or traveller's cheques?
您是用现钞换呢，还是用旅行支票换？
His answer was to lift the vessel out of the water by making it ride on a cushion of air,
他的解决办法是把船体提离水面，让船在一个气垫上行驶，