慢慢停止,變小;放鬆
let up v 1: become less in amount or intensity; "The storm abated"; "The rain let up after a few hours" [syn: {abate}, {slack off}, {slack}, {die away}] 2: reduce pressure or intensity; "he eased off the gas pedal and the car slowed down" [syn: {ease up}, {ease off}]