Petrels
(petrel 的复数) n. 海燕
🗣️ 情景例句
I'm glad for the dog.
我真替那只狗高兴。
This is Lesson One.
这是第一课。
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。