1.at rest 休息之中,处于停止状态,处于安宁状态
例句:He lies at rest in the Martyrs' Cemetery.
他在烈士陵园安息着。
2.at risk 处境危险,遭受危险
例句:He saved three children alive at risk of his life.
他拼命救出了三个孩子。
3.at sea level 在海平面上
例句:A unit of pressure equal to the air pressure at sea level, approximately equal to1.01325?05newtons per square meter.
大气压力压力单位,等于海平面上的空气压力,每平方米约为1。01325?05牛顿
4.at sixes and sevens 乱七八糟;不和
例句:I'm all at sixes and sevens about what to do.
我心里七上八下,不知该怎么办。
5.at the expense of 由...付费,由...负担费用;以...为代价,在...受损害的情况下
例句:It is wrong to aim at sheer quantity at the expense of quality.
片面地追求数量而忽视质量是错误的。
6.at the mercy of (at sb.’s mercy) 任凭...的摆布,完全受...的支配
例句:A sailor is at the mercy of the weather.
水手受到天气的摆布。
adj. 国内的,内在的,身体内部的