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他正在做实验。用英语怎么说？

他正在做实验。

He is experimenting.

相关词汇
he is experimenting

he

pron. 他，它，一个人；n. 雄性动物；

is

vt.& vi. 是（be的三单形式；n. 存在；

experimenting

vi. 做实验，进行试验（experiment的现在分词形式）；
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
That will excuse him another trip.
那将省得他再跑一趟。
Many people are forced by exigencies of circumstance to take some part in them.
许多人由于境况所逼又不得不在某种程度上参与这种活动。
The purpose was to halt the rise in the exchange rate of the Swiss franc.
目的在于制止瑞士法郎汇率上涨。
capital exodus
资本逃避
The first exhibit was a knife which the prosecution claimed was the murder weapon.
当庭出示的第一件证物是一把刀, 据原告称是谋杀凶器。
They were excited with joy at the success.
他们为成功而欣喜若狂。
Planting his case on the table,he looked at us expectantly.
他把箱子在桌子上放稳,以期待的目光望着我们。
Consensus politics places a high value on existing political institutions.
代表多数人意见的政纲强调现存政治机构的重要性。
an exceptionally violent storm
一场异常猛烈的暴风雨
She was charged an excess of 400 dollars over the amount stated on the bill.
向她索取的比账单上显示的数额多400美元。
The ranks of the teachers are constantly expanding.
教师队伍日益扩大了。
the excise levied on beer and tobacco
啤酒烟草消费税
A 20-mile exclusion zone was set up around the power station to guard against further explosions.
发电厂周围设立了20 英里的禁区以減低再度爆炸造成的影响。
Empathy for the criminal’s childhood misery does not imply exoneration of the crimes he committed as an adult.
对罪犯悲惨的童年表示怜悯不等于可以免除他长大成人后所犯的罪。