| 例句 |
Lack of money necessitated a change of plan.由于缺乏资金，只能改变计划。The emergency necessitated a change in plans.紧急情况使计划必须改变。A prolonged drought had necessitated the introduction of water rationing.由于持续干旱，有必要对用水实行配给了。New safety regulations necessitated adding a railing to the stairs.新安全规定要求楼梯必须配有扶手。The situation necessitated the abandonment of their boat.这种情况迫使他们放弃他们的船。His occupation necessitated considerable scepticism, but even so a man could become too mistrustful.他的职业需要他凡事多抱怀疑态度，即便是这样，他也有点过于多疑了。Frank was carrying out fuel-system tests which necessitated turning the booster pumps off.弗兰克在做燃料系统测试，这一测试需要关掉升压泵。 |