Are these products marketable?
這種產品銷得出去嗎？
I always carry a portable computer with me.
我總是隨身攜帶一臺手提電腦。
He conceived of the first truly portable computer in 1968.
1968年，他構想出第一臺真正的便攜式計算機。
There was a little portable television switched on behind the bar
柜臺后面有一臺開著的便攜式小型電視機。
The latest discs, used for small portable computers, spin 3600 times a minute
用在小型便攜式計算機上的最新光盤轉速為每分鐘3,600轉。