Perigynium
雄器苞
🗣️ 情景例句
Excuse me, do you know...?
打扰一下，你知道...？
During the two years since I took charge of the department.
在我负责这个部门的两年中。
it takes much less energy to accelerate to that 1.5 miles per second than it does on Earth.
在月球上加速到每秒1。5英里比在地球上所用能源要少得多。