例句與造句

1. these services must begin upon installation and be provided at intervals not to exceed one year and as system conditions warrant
   根據(jù)系統(tǒng)狀況這些檢測和維護需要必須在安裝后進行，還要在不超過一年的時間內(nèi)進行。
2. the service duration begins upon the interpreters arrival at the customers premises and ends when he or she leaves, including the break and lunch hours
   翻譯工作時間的計算以到達客戶工作地為起始時間，離開工作地為最終時間包括中間的休息及午餐時間。
3. she saw by degrees that since their first and only encounter his mobile face had grown more thoughtful, and had acquired a young man s shapely moustache and beard-the latter of the palest straw colour where it began upon his cheeks, and deepening to a warm brown farther from its root
   她還逐漸看見，自從他們第一次也是僅有的一次相遇以后，他那生動的臉變得更為深沉了，嘴上已經(jīng)長出了年輕人有的漂亮胡須了下巴上的胡須是淡淡的麥秸色，已經(jīng)長到了兩邊的臉頰，逐漸變成了溫暖的褐色。
4. It's difficult to find begin upon in a sentence. 用begin upon造句挺難的