公司最初实行不加薪政策，但在员工威胁罢工后不得不改口。

The company had to ___backtrack on its no-raise policy after employees threatened to strike.

我们走错路了，不得不沿着小路原路返回。

We took the wrong path and had to ___backtrack along the trail.

由于公众抗议，政府不得不撤回其提高税收的决定。

Facing public protests, the government had to ___backtrack on its decision to raise taxes.