They announced a fall in pretax profits.

　　他們宣布了稅前利潤的下降。

　　Large flakes of snow began swiftly to fall.

　　大片大片的雪花開(kāi)始飛快地落下。

　　House prices could perk up during the fall.

　　秋季房?jì)r(jià)可能會(huì )上漲。