to fall behind others in progress or development
在进步或发展上落后于他人 (zai jinbu huo fazhan shang luohou yu taren)
"She started to drop behind in her studies after missing several classes."
"在错过几节课后，她开始在学习上落后。" (zai cuo guo ji jie ke hou, ta kaishi zai xuexi shang luohou)
to gradually reduce expenses
to fold or turn up sleeves or trousers
to start working smoothly after some time or preparation
to distribute items to people
to demonstrate honor or reverence toward something or someon...
to change to a newer or better version of something
