"his diligence won him quick promotions" "frugality and industry are still regarded as virtues"
"it is a job requiring serious application"
diligence是什么意思
diligency是什么意思
diligent是什么意思
diligently是什么意思
dill是什么意思
dilli是什么意思
dilly是什么意思
dillydally是什么意思
diluent是什么意思
dilute是什么意思