Hard bubble
[计] 硬泡
🧩 词语组成解析
hard
[hɑrd]
adj. 困难的;硬的;有力的;努力的;
adv. 努力地;猛力地;严重地;沉重地;
n. 英〉硬海滩，登陆处;
bubble
['bʌbl]
n. 泡，水泡;冒泡，起泡;泡影，妄想;（欲表达的）一点感情;
vt.& vi. 起泡，使冒气泡;
vi. 使冒泡，发出冒泡的声音;洋溢着（某种感情）;滔滔不绝地讲;兴奋，欢闹;
🗣️ 情景例句
It was very windy last fall.
去年秋天总刮风。
Five cats and a man were involved in an accident.
五只猫和一个男人被卷入那场意外里面。
it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit!
因此，从月球到地球的25万英里所消耗的能量要比从地球表面进入地球轨道的200英里所耗能量少97%。