Antiknock rating
[化] 抗爆率
🧩 词语组成解析
n. 抗爆, 抗爆剂\\n[机] 防爆
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
He's not as lucky as I am
他不像我这样幸运地
You must go to the moon. It's your duty.
你必须上月球去，这是你的职责。
Excuse me, are you American, too?
对不起，问一下，你是美国人吗？