Endothelin
内皮缩血管肽
🗣️ 情景例句
Sorry to hear that, Lillian.
很遗憾听到这个， Lillian。
If the customer requests a carrier other than truck, he must bear the additional charge.
如果顾客坚持用卡车以外的运输工具，就必须负担额外费用。
My boss answered the telephone.
办公室，是我的老板接的。