HSK 7-9
重合
chónghé动
to match up; to coincide
两条路线有一段完全重合。
Liǎng tiáo lù xiàn yǒu yí duàn wán quán chóng hé.
One section of the two routes overlaps completely.
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Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.