enter on/upon的用法和樣例：
例句
- They have entered on their new duties.
他們已開(kāi)始擔任新職。 - I find his books begin to pall on me after a while.
我發(fā)覺(jué)他的書(shū)讀過(guò)一陣子就開(kāi)始對我失去吸引力。 - He embarked on a new enterprise.
他著(zhù)手創(chuàng )辦新企業(yè)。 - Do you know how to set about going on this work?
你知道怎樣著(zhù)手進(jìn)行這項工作嗎？
