名詞 portable:

1. a small light typewriter; usually with a case in which it can be carried

形容詞 portable:

1. easily or conveniently transported
2. of a motor designed to be attached to the outside of a boat's hull

1. She traded her roller-skates for Billy's portable radio.
   她拿旱冰鞋換了比利的手提收音機。
2. The new portable computers are going like hot cakes.
   新的便攜式計算機賣得很快。
3. The documents have been typed into a portable computer.
   文件已經(jīng)被輸入到一臺便攜式電腦里了。
4. Portable telephones are very popular nowadays.
   現(xiàn)今，移動電話非常普及。

port.a.ble

adj.（形容詞）
Carried or moved with ease:
易攜帶或移動的：
例句：
a portable typewriter; a portable generator.
手提式打字機；便攜式發(fā)電機

Obsolete Bearable; endurable.
【廢語】 耐用的；經(jīng)用的
n.（名詞）
Something, such as a light or small typewriter, that can be carried or moved with ease.
輕便易攜物：易手提或攜帶的東西，如燈或小打字機

來源：
Middle English
中古英語
from Old French
源自 古法語
from Late Latin port3bilis
源自 后期拉丁語 port3bilis
from Latin port3re [to carry] * see per- 2
源自 拉丁語 port3re [攜帶] *參見 per- 2

【引伸】
port.abil.ity 或
port.ableness
n.（名詞）
port.ably
adv.（副詞）