[译] 回到了家乡, 他开始对这种形势看得比较清楚了。
[误] Back to his hometown he began to see the situation more clearly.

[正] Back in his hometown he began to see the situation more clearly.
[注] back 后用 in 接表示地方的名词, 介词短语 in his hometown 是修饰 back 的, 另外如 back at home, back in his home, back at (或 in) school 也不用 to。