HSK 7-9
后顾之忧
hòugùzhīyōufears of trouble in the rear (idiom); family worries (obstructing freedom of action); worries about the future consequences; often in negative expressions, meaning "no worries about anything"
托儿服务解决了员工后顾之忧。
Tuō ér fú wù jiě jué le yuán gōng hòu gù zhī yōu.
Childcare services relieved employees of worries about their families.
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Appears across levels (7-9) in the HSK 3.0 word list.