unobtainable
adj. 无法得到的；难获得的
近义词：inaccessible，unavailable，unattainable，outofstock，untouchable，unprocurable，
英英释义
Adjective
- not capable of being obtained;
"a rare work, today almost inaccessible" "timber is virtually unobtainable in the islands" "untouchable resources buried deep within the earth"
例句
用作形容词(adj.)
- Salt is very dear, and sometimes even unobtainable.盐很贵，有时买不到。
- It would take a worldwide crisis to make food unobtainable from any source.只有发生全球性危机，才会到处买不到食品。
- The absolute allocation of these overheads is unobtainable.这些企业管理费用的绝对分配是难以获得的。