WORD BY WORD

slacken

英/slˈækən/
美/ˈsɫækən/
01v.

使松弛, 放松, 放慢

become looser or slack; make slack as by lessening tension or firmness

02v.

变松弛, 减弱, 松劲

become looser or slack; make slack as by lessening tension or firmness