by the sweat of one's brow
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词汇分类：BEC 商务英语词组精选,四级词组(强化版)—有本单词书,IDIOMATIC词组进阶版,地道英语短语组合（出国必备）
词义：
adv.
靠自己辛勤劳动；
造句：
1. Light petroleum distillate , generally known as naphtha, was the logical choice.
轻石油馏分, 如石脑油是合乎逻辑的选择.
来自辞典例句
2. In contact with a hot surface, naphtha petroleum fractions crack to produce ethylene and propylene.
石脑油馏份与一个热表面接角,就裂解而得到乙烯和丙烯.
来自辞典例句
3. Fuel ( Gasoline and Naphtha ) cars of capacity 50 - thousand liters.
五万公升燃油 ( 汽油、石脑油 ) 装载输送能力的汽车.
来自互联网
4. Solvent naphtha is one of the five broad areas of petroleum products.
溶剂油是五大类石油产品之一.
来自互联网
5. Various solvent naphtha fraction generally have to go through refining.
各种溶剂油馏分一般都需要经过精制加工.
来自互联网
[ naphtha 造句 ]
by the sweat of one's brow
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