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（单词翻译）
Worst place to be a mother
Vocabulary
nutrition
the process by which eating food makes someone healthy
welfare
health and safety
chronic
long-lasting
undermines
weakens
vicious cycle
a bad situation that repeats itself
vulnerable
weak and easily harmed
epicentre
central point
front-line
important, actually doing the work
measure
action
ranks
positions, scores
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