Ringsail
纵帆补助帆
🗣️ 情景例句
I think aerobics is easy.
我觉得有氧运动很容易。
Her skirt is behind the chair.
她的裙子在椅子后面。
The journey is so smooth that there is nothing to prevent you from reading or sleeping.
旅途平稳，丝毫不妨碍你阅读或睡眠。