n. someone who is incapacitated by a chronic illness or injury
v. force to retire, remove from active duty, as of firemen
a. having no cogency or legal force
s. no longer valid
词态变化
复数形式:invalids
现在分词:invaliding
过去式:invalided
第三人称单数:invalids
过去分词:invalided
常见例句
1
the doctrine that moral distinctions are invalid
2
v declare invalid v cancel officially
3
prevent from happening v refrain from doing something v refrain from certain foods or beverages v declare invalid
4
as of rules or patterns v surpass in excellence v make known to the public information that was previously known only to a few people or that was meant to be kept a secret v come into being v stop operating or functioning v interrupt a continued activity v make a rupture in the ranks of the enemy or one's own by quitting or fleeing v curl over and fall apart in surf or foam, of waves v lessen in force or effect v be broken in v come to an end v vary or interrupt a uniformity or continuity v cause to give up a habit v give up v come forth or begin from a state of latency v happen or take place v cause the failure or ruin of v invalidate by judicial action v discontinue an association or relation
