prep.介系詞由於;根據Under the law, you're only an adult at 21 years old
adj.形容詞下面的Harry Potter used to live under the stairs
adv.副詞更低;更少;更小The car is priced under $500
prep.介系詞在...的管理(監督)之下I work under the manager
prep.介系詞未滿;少於; 不足的We could only sell it for under $1000. But we can get $1200
prep.介系詞在...影響之下She was under the influence of alcohol
prep.介系詞低於;未滿Sorry, I can’t drink I’m under 18
prep.介系詞在...之下The cat is under the table.
prep.介系詞在...期間The bridge was built under his supervision.
prep.介系詞被...覆蓋The ground was under a blanket of snow.
adv.副詞偽裝The detective went under to catch the criminal.