形容词可用的，合用的，便于使用的
1. 能否右键使用：special: 无用; | useable: 能否右键使用; | dropsound: 掉下时的音效;
1. For decades the world's scientists have been eyeing the potential of turning dry air into a useable energy.
2. The programs will focus on turning kitchen waste into useable resources to prevent cooked oil from returning to dinner tables.
3. Enrichment is a process of purifying uranium to make it useable as nuclear fuel or in atomic weapons.
4. Even if they make breakthroughs one day they will still need to conduct nuclear explosion tests and acquire other technologies to develop a useable weapon.
adj
1. convenient for use or disposal
e.g. the house is available after July 1
2000 square feet of usable office space
2. fit or ready for use or service
e.g. the toaster was still functional even after being dropped
the lawnmower is a bit rusty but still usable
an operational aircraft
the dishwasher is now in working order
Synonym: functional usable operable operational
3. capable of being put to use
e.g. usable byproducts
Synonym: usable