set out
问题描述：
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?
答
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....