我们打电话叫了水管工，因为厨房水槽好几天都排不出去水。
We called a plumber because the kitchen sink hadn't been draining properly for days.
▼点击显示答案
hadn't英 /ˈhædnt/|美 /ˈhædnt/
been英 /biːn/|美 /bɪn/
draining英 /ˈdreɪnɪŋ/|美 /ˈdreɪnɪŋ/
解释
(hadn't) (been) (draining) 是过去完成进行时的否定式，由 had not been + draining 构成，表示在打电话这个过去动作之前，水槽一直处于不正常排水的状态。
We called a plumber because the kitchen sink hadn't been draining properly for days.
(hadn't) (been) (draining) 是过去完成进行时的否定式，由 had not been + draining 构成，表示在打电话这个过去动作之前，水槽一直处于不正常排水的状态。