🧩 词语组成解析
ELF
[[elf]]
n. 小精灵, 矮人, 淘气鬼\\n[电] 超低频的简写
cup
[kʌp]
n. 杯子;一杯（的量）;（胸罩的）罩杯;优胜杯;
vt. 使（手）窝成杯状;使（双手）成圆状托起;为…拔火罐;
🗣️ 情景例句
I think the skirt is just right.
我觉得长度合适。
Could you tell me where I can find these books?
您能告诉我在哪儿能找到这些书吗？
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，