🧩 词语组成解析
genus
['dʒi:nəs]
n. （动植物的）属;类;种;型;
[医] 二蕊紫苏属
🗣️ 情景例句
Don't get so excited about it.
别因为这事儿太激动。
The school is two miles straight ahead.
那学校一直向前两英里。
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%。