开叫 meaning in English

initial bid
opening bid

Why didn ' t you jump to two clubs at the opening bidding
开叫时你为什么不跳叫二梅花？
He could ' ve shut out the south with 3 diamonds opening bid
他本来可以开叫三方块来阻止南手叫牌的。
Now came another moderate hand , and again he tried to open the jack - pot on it
这时又拿到了一副很普通的牌，他又想靠这副牌开叫大注。
This article has made certain research on building an information management system of tourism caves , succeeded in the fields of the management of environment information of these caves , and the execution of the system and has predicated its possible benefits , yet due to lack of time and funds , there are still problems and deficiencies to be delt with in the future
虽然本文在致力于建设旅游洞穴管理信息系统( emis )方面做出了一定的研不;浴补绍弓火洲称乏个?理“扎理: s勺开叫小产充究，对于旅游洞穴环境信息的管理与系统的实现方面取得了一定的成果，并预期了可获得的效益，但是由于时间、经费等方面的原因，芙蓉洞emis还存在了一些问题和不足之处，尚待进一步的完善。