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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。
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。
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。
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
an exhortation to do better
劝勉
The story is exclusive to this newspaper.
这家报纸独家报道这个材料。
Jack and Mary expect their second very soon.
杰克和玛丽期待着第二个孩子的降生。
The father was in an expansive mood and gave presents to all of his children.
他们的父亲心情很好, 给每个孩子都送了礼物。
Give my excuses to your mother for having caused her so much trouble.
请代我向你母亲致歉, 我给她添了不少麻烦。
Excuse my taking your umbrella by mistake.
请原谅我错拿了你的伞。
If you pay me ￡ 20, 000, I'll give your paper the story as an exclusive.
你如果付给我2万英镑, 我就给你的报纸独家报道这件事。
the branch of theology that deals with principles of exegesis
研究诠释原理的神学分支
a piece of excrement
一块排泄物
an exiguous budget
极少的预算
an excretory organ of certain invertebrates.
某些无脊椎动物的排泄器官
I expect (that) you are tired from the trip.
我想你旅途劳顿了吧。
The executive has[have] been making decisions about the future of the company.
领导层一直在研究公司未来的决策。
excise duty on spirits
对烈酒征收的消费税