4个回答
展开全部
set out to do
set about doing
start/beging to do/doing
get down to doing开始认真做
set about doing
start/beging to do/doing
get down to doing开始认真做
本回答被提问者采纳
展开全部
begin to do / doing
start to do / doing
start to do / doing
展开全部
begin to do sth.
展开全部
begin doing sth ; begin to do sth
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