Did you see the length of his hair?

　　你看見(jiàn)他頭發(fā)有多長(cháng)嗎？

　　This room is twice the length of the kitchen.

　　這個(gè)房間的長(cháng)度是廚房的兩倍。

　　The snake usually reaches a length of 100 cm.

　　蛇一般長(cháng)達100厘米。