Lecithid
蛇毒溶血卵磷脂
🗣️ 情景例句
The rural workforce has been flowing in to the cities ever since the open door policy was adopted.
自从改革开放政策实施以来，农付劳动力正不断流向城市。
I will be going back to Hong Kong at this time on Monday.
我将在星期一这个时候回到香港。
I can't afford a new car.
我买不起一部新车。