I started working hard for the first time in my life. To my surprise, I found I liked it.我生平第一次开始努力工作。令我惊讶的是，我发现我竟然很开心。He began to struggle to work the knots free.他开始努力把结解开。The only thing to do was knuckle down and get on with some serious hard work.唯一能做的就是开始努力工作，好好干出点儿成绩来。