Secocholestane
断胆甾烷
🗣️ 情景例句
Do you think the clothing industry has bright future?
你觉得服装行业前景好吗？
You'd better see a doctor about that stomachache.
你胃痛最好去看医生。
Do you want beef or lamb?
您要牛肉还是要羔羊肉？