n. a shape that is spherical and small
n. a small indefinite quantity (especially of a liquid)
n. a sudden sharp decrease in some quantity
n. a predetermined hiding place for the deposit and distribution of illicit goods (such as drugs or stolen property)
n. 滴, 微量, 落下, 空投
vi. 放下, 掉下, 下降
vt. 使滴下, 放下, 丢失, 遗漏
[计] 投入, 投入点, 接入点, 分接点