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This discolouration is completely harmless.是什么意思？

This discolouration is completely harmless.

这种变色是完全无害的.

相关词汇
this discolouration is completely harmless

this

pron. 这，这个，这事，这人，这时，下面所说的事；adj. 这，这个，刚过去的，即将到来的，今…，本…；adv. 这样地，就是这样，这么地；
例句
Victoria Falls has had above average levels of rainfall this year...
维多利亚瀑布今年的降雨量超过了平均水平。

discolouration

n. 变色，褪色，污染；
例句
This discolouration is completely harmless.
这种变色是完全无害的.

is

vt.& vi. 是（be的三单形式；n. 存在；
例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

completely

adv. 完全地，完整地，完全，彻底，全部，一干二净，很，非常，充分，十分，万分；
例句
...a second career which absorbed her more completely than her acting ever had.
比演艺生涯更让她投入的又一职业

harmless

adj. 无害的，不致伤的，没有受到损失或免于法律责任的；
例句
Johnny was the most persistent and most harmless of her admirers.
约翰尼是追她的人中最痴心、最没有心机的一个。
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
Don't forget to admire the baby.
不要忘了夸奖那孩子。
They signed two new pitchers for the next season.
他们已经和两名新水手签约来打下个赛季的比赛.
The champagne poured frothily into the glasses.
带着泡沫,香槟酒被倒进了玻璃杯.
The 19 th century was the heyday of steam railways.
19世纪是蒸汽机车鼎盛的时代.
In a rasping voice, she told of her long and agonising battle.
她用粗嘎的声音讲述了自己长期而痛苦的抗争。
The offending comment was in fact a heckle from an audience member.
这番冒犯性的话实际上是一名观众的诘难。
If you remove stone by stone, even a mountain will be levelled.
一块一块把石移，高山也可变平地。
The first large contingent of troops touches down on American soil today.
第一批分遣大部队今天在美国着陆。
Pete's torch picked out the dim figures of Bob and Chang.
皮特的火把映出了鲍勃和张的模糊身影。
The upward drift stoping with backfill is a mining method with a widespread use future.
上向进路充填采矿法是一种具有广阔应用前景的采矿方法.