Rao
abbr. 右前斜位（right anterior oblique）
🗣️ 情景例句
You may accept this draft by signing.
请你们签字"承兑。
I'm calling to say goodbye.
我大电话向你告别来了。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。