Necessitates

例句:

• It is the presence of this gas that necessitates the safety-lamp. 佚名. 神奇的知识之书.
• We have seen how one discovery, or the development of a certain art, brings in its train and often necessitates other inventions and discoveries. 威廉·亨利·杜利特. 世纪发明.
• As one invention necessitates and begets others, so special forms of machines for sawing and working up wood into pegs were devised. 威廉·亨利·杜利特. 世纪发明.
• It is the law of inventions that one invention necessitates and generates another. 威廉·亨利·杜利特. 世纪发明.
• If your disapproval of it should render you unwilling to discharge such business as it necessitates, I am sorry for it, and must seek other aid. 查尔斯·狄更斯. 小杜丽.
• The production of several completed plays per week necessitates the employment of a considerable staff of people of miscellaneous trades and abilities. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

整理:梅纳德