spring-board和platform的区别?都有跳板的意思,但是有什么区别?

spring-board和platform的区别?都有跳板的意思,但是有什么区别? board board on the board和on board的区别, on board和on board的区别及用法,是on boards和on board。 notice board 和billboard的区别 board和bored的读音区别 board和broad发音有何区别 on board 和from aboard区别? slide和sliding board的区别 on board 到底是什么短语?为什么能说on board the ship和go on board the ship 还有 the people on board 英语翻译从配电盘到配电盘?DISTRIBUTION BOARD和SWITCH BOARD 不都是盘配电盘的意思? 请问提单上ship on board 和clean on board的区别. 请问提单上ship on board 和clean on board的区别 Spring spring Spring Spring和SpringMVC的区别