进

jìn to go forward; to advance; to go in; to enter; to put in; to submit; to take in; to admit; (math.) base of a number system; classifier for sections in a building or residential compound

骗

piàn to cheat; to swindle; to deceive; to get on (a horse etc) by swinging one leg over

子群

zǐ qún subgroup (math.)

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