❶ (指地方)在〔Are they at home?他们在家吗?〕 ❷ (指方向)朝〔Look at her．看著她。
Aim at the target．瞄准靶子。〕 ❸ 出席，到〔Tom was at the party．汤姆出席晚会。〕 ❹ 从事〔men at work从事工作的男人们〕 ❺ (状态)处于…之中〔England and France were at war．英法处于交战状态。〕 ❻ (指活动)方式〔The boy ran at a trot．这个男孩一路小跑。
〕 ❼ 指原因〔terrified at the sight见状而害怕〕 ❽ 指速度或程度，价值，价钱〔at five cents each每个价值5分〕 ❾ (时刻，年节，年龄)在…〔Byron died at thirty-six．拜伦36岁时逝世。〕