This is the only bus to the village 就可以了
这是通往那村庄的唯一巴士
which there is 全部去掉可是答案上说吧which变成that,我不理解为什么因为 定语从句的先行词有only修饰的时候，只能用that作引导词所以不能用which但是其实没必要表达的怎么复杂