lessenv.减少;减轻
lessen fstigue减轻疲劳
lessen emission减排
lessen breakage减少破损
lessen a burden减轻负担
lessen resistance减少阻力
lessen a contrast减少差别
lessening desires寡欲
lessen the danger减少危险
lessened translation减译
lessen gastric upset减少胃反应