Echinacosid
海胆苷
🗣️ 情景例句
May I have a tour of the cockpit, please?
我能参观一下驾驶舱吗？
Why are you disappointed?
你为什么灰心？
Yes, your last shipment wasn't up to par.
嗯，你上次送去的货没有达到标准。