Vacuum tube rating
[电] 真空管规定值
🧩 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
🗣️ 情景例句
I'll pick you up here at seven .
我七点钟到这儿来接你 。
It's available in a variety of sizes at convenience stores and department stores as well.
有各种大小型号，在便利商店和百货公司均有。
Your bid is much higher than your competitor's.
你们的价钱比起其他公司高出太多了。