Helamycin
[化] 喜霉素
🗣️ 情景例句
Yes, Mr. Carlson. Yes, sir.
是的 ，Carlson先生。好， 先生。
Plants of learning must be watered with the rain of tears.
知识的幼苗要用泪雨来浇灌。
and the search for oil has done more to improve deep drilling than any other mining activity.
寻找石油比其他任何采矿业对改进深孔钻探作的贡献都要大。