Bidigraph
[計] 有向偶圖
??? 情景例句
It's OK, Harry.
沒關系， Harry。
You're likely to see a cheerful message or two hanging on the wall.
很有可能會看到一兩條掛在墻上的格言。
He put them both into his mouth.
他把這兩枚硬幣全都放進嘴里。