"the beginning of the war"
"they got an early start"
"she knew from the get-go that he was the man for her"
"`It was a dark and stormy night' is a hackneyed beginning for a story"
"the Italian beginning of the Renaissance"
"Jupiter was the origin of the radiation"
"Pittsburgh is the source of the Ohio River"
"communism's Russian root"
"he was responsible for the beginning of negotiations"
"the beginning canto of the poem"
"the first verse"
He was opposed to the plan from the beginning.
他从一开始就反对这个计划。
He was opposed to the plan at the beginning.
他起初反对这个计划,但后来就不反对了。
In the beginning there were no living creatures.
句中at不可替换成in。