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Do you think Rock-paper-scissors is a  (children) game? It's also a world competition!Every year, top  (player) from around the world get together tocompete in the RPS World Championships(石头剪刀布世锦赛).

Players smack(碰击) their fists into their palms and count to three before

(make)oneof the three hand signs: a fist (rock), flat hand (paper) or two fingers(scissors). The rule is paper  (cover) rock, rock breaks scissors andscissors cut paper. The World RPS Society(国际石头剪布协会) was founded(成立) in  (English)in 1842. Now there are thousandsof members in it. So

(join)the society first, then you may  (make) a name yourself at the RPS World Championships.