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We have definite proof. 我们有确凿的证据。
The northern lowlands of Mars looked like there might have been an ocean there, but there wasn't definite proof. 火星北部的低地看起来也可能曾经存在海洋，但是当时还没有确凿的证据证明。
Confined waves have definite frequencies. 被限制的波具有确定的频率。
The case was dismissed in the absence of any definite proof. 此案因缺乏确凿证据而不予受理。
had definite proof conj. 确证
Finally, a mineral must have definite chemical composition. 再一点是一种矿物必须具有一定的化学成分。
has definite proof conj. 确证
have definite proof conj. 确证
Zhu and Cao's three hundred pages paper is the first clear and definite proof of the Poincare conjecture. 朱、曹的长达300页的论文是首次对庞加莱猜想清楚、明确的证明。
Good photographs have definition. 好的照片都很清晰。
He have definitely take the job. 他肯定接受这份工作。
We have definitely accomplished our mission. 我们这次会议真正是胜利地完成了自己的任务。
In recent years, we can easily find Principal Sadler’s message in most of the Kei Heep anniversary publications.This is a definite proof of concern for Kei Heep from him. 基协近年出版的校庆特刊都得蒙施校长答允写下感言，足以证明他对基协的关爱。
I have definitely gotta study today. 我今天非用功不可。
Solids have definite shapes( e. g. crystals). The particles are held in position. They just vibrate. 固体有明确的外形（晶体）粒子固定在某个位置，它们只是在振动。
A location, region, or space, generally having definite boundaries. 通常具有明确界线的定位;地区或空间.
The results show TCM has definite effect on chronic nasosinusitis. 资料表明,中医药对慢性鼻窦炎具有肯定的疗效。
Most of patients with DVST have definite causes and various clinical features and can be diagnosed wi th MRI and MRA. 颅内静脉窦血栓形成患者多可找到明确病因，临床表现多样，无特异性，MRI/MRA 可帮助确诊。
Solids have definite shapes(e.g. crystals). The particles are held in position. They just vibrate. 固体有明确的外形（如晶体）。粒子固定在某个位置，它们只是在振动。
It is not yet known whether there will ever be definitive proof of the metabolic status of dinosaurs. 是否会得到有关恐龙代谢过程的准确资料现在还不得而知。