His first music teacher was a major influence in his life.
他的'第一位音乐老师是他一生中对他影响非常大的人。
Let's be practical and work out the cost first.
咱们实际一点儿，先计算一下成本费用。
Our first task is to set up a communications system.
我们的首项任务是架设通信系统。
I didn't like the job much at first.
起初我并不很喜欢这个工作。
The first stage in research is data collection.
研究工作的第一步是收集资料。