① at the top of意為“在……頂上,高于”,可表示具體意義或抽象意義。
There used to be a pagoda at the top of the hill. 小山頂上曾有一座寶塔。
He ran at the top of his speed. 他以最快速度跑。
He shouted at the top of voice. 他高聲叫喊。
The mayor sat at the top of the table. 市長坐在首席。
He is at the top of his class. 他在班上名列前茅。
② on top of意為“在……之上;駕馭;處于最佳狀態(tài);通曉;除外(還有);緊接著”,可表示具體意義或抽象意義。
They laid stones one on top of another. 他們把石頭一塊一塊地疊起來。
He is a man on top of his job. 他做這份工作游刃有余。
Mr. Brown is on top of the situation. 布朗先生熟悉情況。
The sea and the warm sun made us feel on top of the world. 大海和溫暖的陽光使我們覺得高興舒適。
She writes for the newspaper on top of her regular job. 她除了日常工作外,還為報(bào)社寫稿。
Gale winds came on top of the floods. 洪水之后緊接著又遭暴風(fēng)的襲擊。