A：She likes fastening the belt loosely around her waist.
她喜欢把腰带松松地系在腰上。
B：Maybe it's a fashion, but I don't really like it.
那可能是一种时尚吧，不过我不太喜欢。
fasten /?fɑ?sn/ v. 系；扣紧
loosely /?lu?sli/ adv. 松松地，宽松地，松散地
■ 另外，do up the belt 和 put one's belt (a)round one's waist 也都可以表示“系上腰带”。
把腰带扣上 buckle one's belt
A：He looks like a serviceman when he buckles his belt.
他把腰带扣上的时候俨然就是一名军人。
B：It's not surprising. He used to serve in the army.
这不奇怪。他曾经当兵。
buckle /?b?kl/ v. 扣住，扣紧 n.（皮带等的）锁扣
serviceman /?s??v?sm?n/ n. 军人，现役军人