set out 就像这到题!It's 10 yeas since the scientist ____on his life's work of discovering the valuable chemical.选set out.但是set out 能在举几个例子吗?

set out 就像这到题!It's 10 yeas since the scientist ____on his life's work of discovering the valuable chemical.选set out.但是set out 能在举几个例子吗?
set out
就像这到题!
It's 10 yeas since the scientist ____on his life's work of
discovering the valuable chemical.
选set out.
但是set out
能在举几个例子吗?

set out 就像这到题!It's 10 yeas since the scientist ____on his life's work of discovering the valuable chemical.选set out.但是set out 能在举几个例子吗?
这里的set out 是指“开始,开始从事”的意识,
整个句子的意识是：自从这个科学家开始从事他生活中“发掘有价值化学物质”的工作,已经有十年了.
又比如：
You must set out to do your work at once.
你必须立即开始工作.
set out 和 set about意识相近,都有 “开始,出发,着手”的意识,
但set out后加不定式,即set out to do sth,而set out about后加 ing形式,即set about doing sth.
本题的set out on 相当于 set out about
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