invalidator

常见例句

• His claim to ownership is invalid.
  他的所有权是无效的。
• A passport that is out of date is invalid.
  护照过期是无效的。
• His father is a bed-ridden invalid.
  他父亲是个缠绵病榻的人。
• He has been an invalid all his life.
  他终身残废。
• The invalid gained colour under the doctor's care.
  病人在医生的治疗下，脸色逐浙红润。
• The invalid lay propped on the pillows.
  那病弱者倚靠在枕头上。
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