unluckily i did a couple of time but i failed atlast(翻译英语 )

问题描述:

unluckily i did a couple of time but i failed atlast(翻译英语 )

a couple of times 应该是这样吧?time前有a couple of修饰 要加s的
很不幸(意译成“很遗憾”会更好),我做了好几次,但最后还是失败了.