Astm octane number (research method)
[化] ASTM辛烷值(研究法)
🧩 词语组成解析
[化] 美国材料试验学会
n. 辛烷\\n[化] 辛烷; 正辛烷; 辛烷; 辛级烷
🗣️ 情景例句
Richard, isn't that too much to ask of your mother?
Richard，那是不是太麻烦你母亲啦？
Better to do well than to say well.
说得好不如做得好。
Yes, I do. Is it ready now?
是的，我想取回电视。现在修好了吗？