单词	cheslon
释义	cheslon 切斯纶
随便看	operators space operator's stand operators station operator's station operator's stool operator stable process operator stack operator's talking circuit operator state operator state machine operator station Operator Stations operator station task operator station taskOST operator station task OST operator's telephone set Operators that take a single operand operator's toll dialing system operator stool operator subgoaling Operator Support System operator's workload operator's workplace operator symbol operator system