verb · to constrict organic tissues or reduce secretions; to act as an astringent

这种洗面奶具有收敛毛孔的功效。

verb · (mathematics) to approach a definite limit or value

这个数列是收敛的。

verb · to dwindle, vanish, or cause to disappear, often used for light or expressions

太阳收敛了它灿烂的光芒。

verb · to exercise restraint or curb one's behavior, mirth, or arrogance

他在公共场合收敛了自己的脾气。