Boe
abbr. back outlet eccentric 后偏心（轮）出口
🗣️ 情景例句
Thanks.
谢谢你。
Have you had breakfast yet?
你吃过早餐了吗？
Now move the hand to and fro and around but not up and down.
然后把手前后左右以及旋转摆动，但不要上下摆动。