Acitvity rating of catalyst
[机] 催化剂的活性率
🧩 词语组成解析
rating
['retɪŋ]
n. 等级;评估，评价;极限;收听率，收视率;
v. 估价( rate的现在分词);定级;
rat =calculate 计算 + ing [名词后缀],构成抽象名词 → n. 等级,评定结果，收视(听)率
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
You have been working on this for some time, Richard.
你从事这工作已有一段时间了， Richard。
Let me have your money!
交上买路财！
He was amused too, because he never expected the bicycle to be found.
但又感到非常好笑，因为他从未指望那辆自行车还能找到。