Rcaf
abbr. 加拿大皇家空军（Royal Canadian Air Force）
🗣️ 情景例句
It's ice cream.
是冰淇淋喔。
No man is born wise or learned.
人非生而知之。
This is done by a great number of ring-shaped air jets on the bottom of the craft.
船底装上大量环状喷气嘴以实现这一目的。