Dorsoventrad
[醫(yī)] 由背向腹
??? 情景例句
How do I address you?
我該怎樣稱呼你？
I meet the boy whose aunt is a housemaid.
我遇到那個男孩的姑媽是家庭主婦。
Does the computer ever make a mistake.?
計算機出錯嗎？