practicable

形容词 practicable:

1. usable for a specific purpose
   同义词：operable
2. capable of being done with means at hand and circumstances as they are
   同义词：feasible, executable, viable, workable

1. His plan seemed to be too difficult, but before long it proved to be practicable.
   他的计划看起来太困难，但是没多久就被证明很实用。
2. The mountain route is practicable only in summer.
   只有在夏季那条山路才可以通行。
3. That suggestion sounds practicable.
   那条建议听起来可行。

prac.ti.ca.ble

adj.（形容词）
Capable of being effected, done, or put into practice; feasible.See Synonyms at possible
可实用的，行得通的：能实行、能做到或可应用的；可行的参见 possible
Usable for a specified purpose:
实用的，适用的：能实际使用的：
例句：
a practicable way of entry.
实用的入口

来源：
Medieval Latin practic3bilis [capable of being used]
中世纪拉丁语 practic3bilis [能用的]
from practic3re [to practice]
源自 practic3re [实践，实行]
from pr3ctica [practice]
源自 pr3ctica [实行]
from Late Latin pr3cticô [practical as against contemplative life]
源自 后期拉丁语 pr3cticô [与冥想的生活相对的现实生活]
from Greek praktikô [feminine of] praktikos [practical] * see practica
源自 希腊语 praktikô [] praktikos的阴性词 [实际的，实用的] *参见 practica

【引伸】
prac.ticabil.ity
n.（名词）
prac.ticably
adv.（副词）
Practicable means .feasible. as well as .usable.and hence overlaps in meaning to some extent withpractical, which can mean .useful.. However,practicable does not share any other senses with practical.
Practicable 意为.可行的.， 也有.可用的.之意，所以在意义上与意为.有用的.practical 有一定程度的重叠。 然而，practicable 与 pratical 没有其他意义的重合