Lecithid
蛇毒溶血卵磷脂
🗣️ 情景例句
I've been having a hard time keeping my eyes open
我一直挣扎着要让双眼睁开
Please leave me alone.
请别打扰我。
Kate, could you answer the telephone, please? I'm busy.
凯特，你能接一下电话吗？我忙着呢。