Energy efficiency
能量系数，能量效率，能源效应
🧩 词语组成解析
🗣️ 情景例句
Oh, yes, I couldn't agree more.
太对了，我举双手赞成。
The police crept up from behind and took the gangster by surprise.
警察悄悄从背后绕过去，出其不意地将歹徒逮捕。
The winning car reached a speed of forty miles an hour -- much faster than any of its rivals.
获胜的那辆车达到了时速40英里--远远超过任何对手。