a. 浪费的

v spend thoughtlessly; throw away

v use inefficiently or inappropriately

v get rid of

v run off as waste

v get rid of (someone who may be a threat) by killing

v spend extravagantly

v lose vigor, health, or flesh, as through grief

v cause to grow thin or weak

v cause extensive destruction or ruin utterly

v become physically weaker

s serving no useful purpose; having no excuse for being

s not used to good advantage

a (of an organ or body part) diminished in size or strength as a result of disease or injury or lack of use

s very thin especially from disease or hunger or cold