Radioactive tracer method

[化] 放射性示踪法

🧩 词语组成解析

radioactive ['redɪo'æktɪv]

adj. 放射性的;

radio光线+act行动，做+ive有...性质的、有...作用的 →放射性的

tracer ['treisə]

n. 追踪者，描图者，（铁笔等）绘图工具;

method ['mɛθəd]

n. 方法;条理;

meth(meta-=after)+od(way)→方法；体系；秩序（=a way after,a following after）

🗣️ 情景例句

How was your school-board meeting last night?

昨天晚上你们的联合校董会会议开得怎么样？

Do you think you could keep the noise down?

你看能不能小声一些？

Just now we all watched you sign to show that you had received the cheque.

刚才我们大家都观察到了你为表明已收到那张支票而签名。

更多情景英语 ›

🔤 更多 R 开头的单词

race horse

reach a deadlock

rebated acceptance

red herring

remote computing system execution error

republisher

rhizoma woodwardiae

risk of breakage

全部 R 开头单词 ›