清潔劑使用過多會對物品造成損傷。因此不必每天都用清潔劑清掃客房，可在做計劃衛生時，多用一些，一次清除。
1、正確錯誤
暫無解析
We______theseminarsponsoredbyyouinSeptemberlastyear.
You’dbetterleavethings________ifyoudon’tknowhowtodealwiththem
Thisisourbestprice,____whichwehaveconcludedmanyorderswithotherbuyersinyourcity.()
She________everythingelseandconcentratedonthetaskbeforeher.
翻譯：Wesendyouabrochureonthevariouskindsofbicyclenowavailableforexport
