不要和陌生人说话。

Don't talk to ___strangers.

作为一个新来的，她对这里的规矩还不太熟悉。

As a ___stranger here, she is still unfamiliar with the local customs.

这个小镇的居民对陌生人总是保持警惕。

The residents of this town are always cautious around ___strangers.