但是也有少部分是可以的
■consumable：something that you buy and use, after which you buy a new one（消費品）. e.g.
low-margin consumables like health and beauty aids
Suppliers add computer consumables, office equipment and furniture to their product range.
語法：可數，常用復數。
■deliverable: a product that a company promises to have ready for a customer(交付物). e.g.
computer software deliverables
語法：可數，常用復數。
■disposable：a disposable product, especially a disposable nappy（壹次性物品，尤指壹次性尿布）. e.g.
paper disposables
plastic disposables
medical disposables
Do you use disposables or washable nappies?
It's estimated that around 80 per cent of babies wear disposables.
語法：可數，常用復數。
■durable：Durables are goods such as televisions or cars which are expected to last a long time, and are bought infrequently（耐用品）
語法：可數，常用復數。
■inflatable：an object that you fill with air before you use it, for example a ball or boat(充氣玩具).
語法：可數。
■notable：an important or famous person（名人，顯要人物）. e.g.
All the usual local notables were there.
Other notables among his pupils were the kings of Saudi Arabia and Thailand.
語法：可數。
■portable: something that is portable, for example a small computer or other small piece of electrical equipment（便攜式物品。尤指便攜式電腦或電子設備）. e.g.
The document had been typed on a small portable.
We bought a colour portable for the bedroom.
The kids are upstairs watching the portable (= television).
語法：可數。
■receivable：assets of a business represented by accounts that still have to be paid(應收帳款)
語法：總是用復數形式。
■rechargeable：a rechargeable battery(蓄電池). eg.
It is more expensive to run a personal stereo on disposable batteries than on rechargeables.
語法：可數。
■undesirable：someone who is thought to be dangerous or involved in crime (不良分子；不受歡迎的人). eg.
The club hires a bouncer to keep out undesirables.
The Home Office is usually quick to deport undesirables.
語法：可數，常用復數。
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