The triplet daughters of Liu Xi, a Chinese peacekeeping serviceman, cry as Liu is about to leave for a medical assistance mission in the Democratic Republic of Congo on Sept。 9, 2017. (Photo/PLA Daily)
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The triplet daughters of Liu Xi, a Chinese peacekeeping serviceman, cry as Liu is about to leave for a medical assistance mission in the Democratic Republic of Congo on Sept。 9, 2017. (Photo/PLA Daily)
