Bilin
后色胆素, 胆汁三烯, 三烯胆色素核
🗣️ 情景例句
Right now, we should clean up this room.
现在， 我们应当清理一下房间。
It is better to be alone than in bad company.
无友要比交坏友好。
That's too expensive for us.
这对我们来说是太贵了。