约定性开叫artificial: adj. 1.人工的,人造的;人为的 (opp. nat ...club: n. 1.棍棒;(马球等的)球棒;【生物学】锤节,(昆虫 ...bid: vt. (bade , bid, 〔古语〕 bad; b ...doubles of artificial bids for pena ties: 对约定性叫牌的严罚性加倍two-club strong artificial opening: 2约定性强开叫下载手机词典可随时随地查词查翻译