U 卡

kǎ to stop; to block; card; CL:張|张[zhang1],片[pian4]; calorie; cassette; (computing) (coll.) slow

qiǎ to block; to be stuck; to be wedged; customs station; a clip; a fastener; a checkpost; Taiwan pr. [ka3]

严

yán tight (closely sealed); stern; strict; rigorous; severe; father

Yán surname Yan

选

xuǎn to choose; to pick; to select; to elect

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