grievous /ˈgriːvəs/ adjective Learner's definition of GRIEVOUS
[more grievous; most grievous] formal
: causing great sadness, suffering, or pain : very serious or severe使人痛苦的;令人伤心的;极其严重的 -
the grievous cost of war战争的惨痛代价
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He took a foolish financial risk and suffered a grievous loss.他愚蠢地冒险投资,结果损失惨重。
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grievous bodily harm极其严重的身体伤害
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a grievous error/mistake极为严重的错误