Activity test

[化] 活性试验; 催化剂的活性试验

🧩 词语组成解析

activity [æk'tɪviti]
n. 活动;活跃,敏捷;活动力;教育活动;
act行动,做+ivity状态→活动
test [tɛst]
n. 试验;考验;测验;化验; vt. 测验;考查;考验;勘探; vi. 受试验;受测验;受考验;测得结果;
test =test,tuitness,表示”测试,证据”

🗣️ 情景例句

I need to make an appointment with you tonight.
我想今晚约你。
When is he expected to be back?
他什么时候回来?
Who was first? Who was second? Who was third?
谁是第一?谁是第二?谁是第三?
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🔤 更多 A 开头的单词

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