set off 同set out的意思 ?

set off 出發

We will set off to barbecue at 5pm = we will go to barbecue at 5pm


set out 開始

We set out to paint the wall this morning but only part of it is finished. =
We began to paint the wall this morning but parto f it is finished.

2011-02-14 20:05:05 補充：
parto f = 更
part of

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