- at the very startadv.一开始;
- at the top of在…顶上;
- at the corner在拐角处
- at the conclusion of当…完结时;
- at that rateadv.那样的话;
- at that moment在那个瞬间;
- at table在吃饭时， 用餐;
- at some stage在某个阶段
- at play在游戏;
- at ones convenience在方便的时候
- at lowestadv.至少;
- at large（囚犯）在逃;逍遥法外;一般说来;详细地;
- at grade intersection平面交叉;
- at first thoughtadv.初一想;
- at fault有错， 有责任;有过失;
- at bay[体]陷入困境;陷入绝境;
- at any moment随时;无时无刻;
- all at once突然;同时;
- be at issue有问题
- come apart at the seams裂缝;
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