a. 可任意处理的

[法] 可任意处理或处置的, 可自由使用的

Disposable \Dis*pos"a*ble\, a. [From {Dispose}.]
Subject to disposal; free to be used or employed as occasion
may require; not assigned to any service or use.

The great of this kingdom . . . has easily afforded a
disposable surplus. --Burke.

2. designed to be disposed of after use; -- of articles of
commerce. The term implies that it is less expensive to
manufacture a new one than to clean and recycle the used
item to make it fit for use again; as, disposable dishes;
disposable diapers; disposable gloves. Opposite of
{reusable}.

Syn: throwaway(predicate), non-reusable.
[WordNet 1.5]