【小词汇大用途】关于at第三辑：1. get back at 报复，He's trying to get back at me. 他试图报复我。2. at ease 自在，舒适，I felt at ease in this company. 我在这家公司感觉很轻松。3. at hand在手边，即将到来，I always keep my girlfriend's picture at hand.我总是把女朋友的照片带在身边。