radioactive background
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radioactive

/ˌɹeɪdioʊˈaktɪv/ /ˌɹeɪdioʊˈæktɪv/

Meanings
noun

放射性物质，放射物

Any radioactive substance.

Examples :

"The radioactive was carefully stored in a lead-lined container at the science lab. "
科学实验室里，那些放射性物质被小心地储存在一个铅衬容器中。
substance material energy physics chemistry science

Related Words

Illustration particularly

particularly adverb

/pəˈtɪkjəli/ /pəˈtɪkjəlɚli/

尤其，特别，格外。

"The apéritifs were particularly stimulating."

这些餐前酒尤其令人兴奋。

Illustration radioactivity

radioactivity noun

/ˌreɪdioʊækˈtɪvɪti/ /ˌreɪdiːoʊækˈtɪvɪti/

放射性, 放射现象

"The old watch contained radium, which caused its hands to glow in the dark due to radioactivity. "

这块旧手表里含有镭，镭的放射性使它的指针能在黑暗中发光。

Illustration container

container noun

/kənˈteɪnə/ /kənˈteɪnɚ/

容器，容纳器。

"The juice box is a small container for the children's drinks at school. "

这种果汁盒是孩子们在学校喝的饮料的小容器。

Illustration substance

substance noun

/ˈsʌbstəns/

物质, 材料

"The scientist carefully examined the substance to determine its chemical composition. "

科学家仔细检查了这种物质，以确定它的化学成分。

Illustration tactics

tactics noun

/ˈtæktɪks/

策略，战术。

"To win the chess game, she used clever tactics, like sacrificing her pawn to control the center of the board. "

为了赢得这场象棋比赛，她运用了巧妙的战术，比如牺牲一个卒来控制棋盘中心。

Illustration contained

contained verb

/kənˈteɪnd/

包含，容纳。

"The box contained old photographs. "

这个盒子里装着一些旧照片。

Illustration carefully

carefully adverb

/ˈkɛːfli/ /ˈkɛɹfli/

小心地，谨慎地，细致地

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

他小心地听着母亲的担忧，为她的失望感到难过。(Tā xiǎoxīn de tīngzhe mǔqīn de dānyōu, wèi tā de shīwàng gǎndào nánguò.)

Illustration disgusting

disgusting verb

/dɪsˈɡʊstɪŋ/ /dɪsˈkʌstɪŋ/

令人厌恶，使人反感

"It disgusts me to see her chew with her mouth open."

看到她张着嘴咀嚼，让我觉得非常恶心。

Illustration exhibiting

exhibiting verb

/ɪɡˈzɪbɪtɪŋ/ /ɛɡˈzɪbɪtɪŋ/

展览，展示

"He wanted to exhibit his baseball cards."

他想展览他的棒球卡片。

Illustration science

science noun

/ˈsaɪəns/

科学，学科。

"Of course in my opinion Social Studies is more of a science than an art."

当然，在我看来，社会学与其说是一门艺术，不如说更像是一门科学学科。

Illustration contain

contain verb

/kənˈteɪn/

包含，容纳。

"The box contains several important documents. "

这个盒子里装有几份重要的文件。

Illustration dangerous

dangerous adjective

/ˈdeɪnd͡ʒ(ə)ɹəs/ /ˈdeɪnd͡ʒəɹəs/

危险的， hazardous 的

"Railway crossings without gates are highly dangerous."

没有栏杆的铁路道口非常危险。