drop off

Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

drop off phrasal verb [ dropping off dropped off dropped off dropped off drops off ]
 
SLEEP
1. to start to sleep
Thesaurus⁺: ↑Sleep and sleeping
 
DECREASE
2. If the amount, number or quality of something drops off, it becomes less
• The demand for mobile phones shows no signs of dropping off.
Thesaurus⁺: ↑Becoming and making smaller or less ↑Becoming and making less strong
Main entry: drop_{phrasal verb}