Double-eagle
n. （美）双鹰金元（美国旧币名, 面值20美元）
🧩 词语组成解析
double
['dʌbl]
adj. 双的;两倍的;两面派的;双人用的;
vt. 使加倍;把…对折;重复;
vi. 加倍，加倍努力;快步走;
adv. 两倍地;双重地;
n. 两倍;双精度型;
doub二，双+le反复 → 反复两倍 → 翻倍
eagle
['i:gl]
n. 鹰;鹰状标志;[高]比标准杆少两杆的分数;
v. [高]低于标准杆数两杆;
🗣️ 情景例句
You are right, whatever opinions may be held by others.
你做得对，别人怎么看不必与日俱增。
Do you ever learn Chinese during the holidays?
你曾经在假日期间学中文吗？
Shortly after this the famous H. M. S. Challenger expedition established the study of the sea-floor as a subject worthy of the most qualified physicists and geologists.
此后不久，英国著名的“挑战者”号舰艇对海底的那次考察，把对海床的研究确立为一个值得一流物理学家和地质学家从事的研究课题。