under

/ˈʌndə/ prep.
标准词条 CET-4
一句话记住

在……下面；被……覆盖；少于；低于；未满；在……影响、管理或规定下

释义与例句

prep. 在……下面；被……覆盖
in or to a position directly below something, or covered by something
  1. The cat is sleeping under the kitchen table.
    猫正在厨房桌子下面睡觉。
  2. She wore a warm vest under her sweater.
    她在毛衣里面穿了一件保暖背心。
展开其余 1 条例句
  1. We found the missing letter under a pile of books.
    我们在一摞书下面找到了那封丢失的信。
prep. 少于；低于；未满
less than a particular number, amount or age
  1. Children under five can travel free on this bus.
    五岁以下儿童乘坐这辆公共汽车免费。
  2. You can buy a decent lunch here for under ten pounds.
    在这里花不到十英镑就能买到一顿像样的午餐。
展开其余 1 条例句
  1. He completed the difficult puzzle in under an hour.
    他用不到一小时就完成了那个很难的谜题。
prep. 在……影响、管理或规定下
experiencing a condition, being controlled or managed by someone, or subject to a rule
  1. The whole team performed well under pressure.
    整个团队在压力下都表现出色。
  2. The project was completed under her careful direction.
    这个项目在她的细心指导下完成了。
展开其余 1 条例句
  1. Under the new rules, all visitors must register at reception.
    根据新规定，所有访客都必须在接待处登记。

词源与构词

记忆钩子 under 后接名词或代词；既可表示“在下面、少于”，也构成 under pressure、under control 等表示条件的搭配。

词族与关联词

易混词（形近或义近，注意区别）
  • below 在……下面；低于
    under 常强调在正下方、被覆盖，或受某种条件支配；below 只表示位置或数值较低，不一定在正下方。年龄常用 under five，温度刻度常说 below zero。
    The temperature fell below zero during the night. 夜间气温降到了零度以下。
常见搭配
  • under pressure 在压力下
    She remains calm under pressure and makes sensible decisions. 她在压力下保持冷静，并作出明智的决定。
  • under control 处于控制之下
    Firefighters brought the warehouse fire under control by dawn. 消防队员到黎明时控制住了仓库大火。
  • under the age of 未满……岁
    Anyone under the age of eighteen must be accompanied by an adult. 未满十八岁者必须由一名成年人陪同。