fall vs fell

fall  落下；跌倒  vi ( 不可有受詞 )

fell  fallen  falling

Leaves fall from the trees .
葉子從樹上落下。

She slipped and fell over .
他滑了一下跌倒了。


fell  砍伐，砍倒  vt ( 可有受詞 )

felled  felled  felling

I won ' t allow them to fell the trees here .
我不會允許他們砍倒這裡的樹的。

He felled his opponent with a single blow .
他一拳便把對手擊倒在地。