n. abstaining from food
v. abstain from certain foods, as for religious or medical reasons
v. abstain from eating
a. acting or moving or capable of acting or moving quickly
a. 快速的, 紧的
adv. 很快地, 紧紧地, 彻底地
n. 绝食, 斋戒
vi. 绝食, 斋戒
1. She runs very fast in the race.
她在比赛中跑得很快。
2. I need a fast internet connection for my work.
我需要一个快速的互联网连接来工作。
3. He is a fast learner and picks up new skills quickly.
他是个学习很快的人，能迅速掌握新技能。