professional是什么意思：
n. 职业选手；专家，内行
Professional boxing is no bed of roses.
职业拳击不是一碗好吃的`饭。
He joined the professional circuit.
他参加了职业巡回赛。
She' s a true professional !
她真不愧为专家！
Tens of thousands of professional personnel
数以千万计的专门人才。
Mr. stuart was not a professional astronomer.
斯图亚特先生并不是专业的天文学家。
bargainer是什么意思：
n. 买卖约定者，交易者
It was a fabulous bargain.
这是一笔极好的买卖。
They considered the possibility of bargaining with the enemy
他们考虑与敌人谈判的可能性。
Make the best of a Bad Bargain
已然吃亏,尽力而为
Will you keep your side of the bargain?
你那一方能遵守协议吗？
I snagged a bargain.
我突然碰到一桩好买卖。
书香门第
