under的用法

Under是介词。当我们把under用作介词时，它与below类似。我们用under来描述某物在另一物下面或更低:猫在桌子下面。他的鞋子在床底下。当我们用under的时候，我们也可以表示一件东西在触摸或覆盖另一件东西。我们不这样使用下面:✅泰坦尼克号的残骸仍然在海底。❎不是:……在海底。✅他把钱藏在地板下面。❎不是:在地板下面。警告:我们不使用under来指代处于较低位置的某物。 We use below: ✅Venus is just below the moon right now. ❎Not: Venus is just under the moon … #Age We use under, not below, to refer to age: You have to be under 18 to get an allowance. They have three children under the age of five. #Measurements We use under, not below, to talk about measurements of time and weight: We finished the project in under a year and a half. The bag was just under 10 kilos, so I was able to bring it on the plane. #When we talk about height and temperature, we use below not under: ✅The roof of the new building is just below the height of the church and I think it distracts from the church. ❎Not: … under the height of the church … The liquid must be kept below five degrees. (preferred to … under five degrees.)