window cleaner

1.Window cleaners are pulled up and down tall buildings on cradles.

清洁工乘坐能升降吊篮清洗高层建筑物子。

2.It's difficult to find a window cleaner who will call regularly—they all seem to be here today and gone tomorrow.

要找个能期上门来擦人很难——他们似乎都是些行踪人。