Let $\gamma:[a,b]\longrightarrow\mathbb{C}$ be a closed continuous curve in the complex plane satisfies:

$(1)\ \gamma(t)\neq 0,\ \forall t\in [a,b]$;

$(2)\ \{\frac{\gamma(t)}{|\gamma(t)|}:t\in [a,b]\}=\{z\in \mathbb{C}:|z|=1\}$.

For any given positive integer $n$, is that right that we can find $a\leq t_1<t_2\leq b$ such that $\gamma(t_1)^n=\gamma(t_2)^n?$