Selectin
选择蛋白
🗣️ 情景例句
He is tough to work with.
他很难共事。
Poor health may be a bar to success in life.
健康不佳可能成为人一生中取得成功的障碍。
Poor Ian!He didn't want to leave this house.
可怜的伊恩！他本不想离开这幢房子。