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a useless or worthless byproduct是什么意思？

a useless or worthless byproduct

无用或无价值之副产品

相关词汇
useless or worthless byproduct

useless

adj. 无用的，无效的，无价值的，差劲的，不怎么样的；

or

conj. 或，或者，还是，不然，否则，左右；prep. <古、诗>在…之前，比…更早；n. [纹章]黑金色、黑色；

worthless

adj. 无价值的，不值钱的，卑微的，不足取的，不足道的，不足轻重；

byproduct

n. 副产品，意外结果，副作用；
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
I wanted to tell you everything but the manager bullied me out of it.
我本来打算把事情都告诉你, 可是经理硬不许我这样做。
We got a very good deal on our new car— it really is a buyer’s market at the moment.
我们的新车买得很合算—眼下确实是买方市场。
He made a buy of wheat last week.
上星期他做了一笔小麦的买卖。
Farmers have reported a bumper crop this year.
据报道今年庄稼大丰收。
He tried to bum a ride.
他试图求别人让他搭顺风车。
He shouldn’t burlesque the elder.
他不应模仿那长者。
By God he's done it!
老天为证, 他确实做了此事。
Press the buzzer when you want to talk.
你想讲话的时候就按蜂鸣器。
But that's outrageous!
啊, 这太可恶了!
The steamer will go west by north.
这艘轮船将向西偏北方向航行。
She threw the cigarette butt into the ashtray.
她把烟头扔进烟灰缸。
On a cold evening it is pleasant to sit by the fire.
在寒冷的夜晚坐在炉火旁边很舒服。
Our company’s business is burgeoning now.
我们公司的业务现在发展很迅速。
They came in by the back door.
他们是由后门进来的。