名詞 sneak:

1. a person who is regarded as underhanded and furtive and contemptible
2. someone who prowls or sneaks about; usually with unlawful intentions
   同義詞：prowler, stalker
3. someone acting as an informer or decoy for the police
   同義詞：fink, snitch, snitcher, stoolpigeon, stool pigeon, stoolie, sneaker, canary

動詞 sneak:

1. to go stealthily or furtively
   同義詞：mouse, creep, pussyfoot
2. put, bring, or take in a secretive or furtive manner
3. make off with belongings of others
   同義詞：pilfer, cabbage, purloin, pinch, abstract, snarf, swipe, hook, filch, nobble, lift
4. pass on stealthily
   同義詞：slip

形容詞 sneak:

1. marked by quiet and caution and secrecy; taking pains to avoid being observed
   同義詞：furtive, sneaky, stealthy, surreptitious

1. James loves sneaking up on his sister to frighten her.
   詹姆斯喜歡溜到妹妹身後嚇她一大跳。
2. The cat ate the food and sneaked off.
   貓吃完食物就偷偷跑了。
3. He sneaked a chocolate from the box.
   他從盒子里偷拿了一塊巧克力。