have needed to翻译

have needed to的基本解释

读音: 美: 英:

有必要做

例句

At least, workers wouldn't have needed to carry cattle fat or water to smooth the paths.至少，工人们本来不需要拿牛脂肪或水来平整道路的。
Because visual inspection cannot reliably distinguish certain skin discolorations from skin cancers, dermatologists at clinics have needed to perform tests of skin tissue taken from patients.由于肉眼检查不能识别某些皮肤变色和皮肤癌，诊所的皮肤科医生需要对病人的皮肤组织进行测试。
If Joe had been paying attention, the timing wouldn't have needed to be quite so exact.如果乔有留心注意的话，时间也许就不需要掐得那么准了。
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