副词随意，任意

1. 随意,任意：at close range 在近距离 | at discretion 随意,任意 | at first 首先

2. 随意：at death's door 生命垂危 | at discretion 随意 | at ease 安逸

3. 酌情决定;自行决定;全权决定：at centre 暂附;暂附本档 | at discretion 酌情决定;自行决定;全权决定 | at float 暂附;暂附档首

4. 酌情决定：as such 因此 | at discretion 酌情决定 | attach 付上;随信付上;随函奉上