lín / xíng / qián / mǔ / qīn / qiè / qiè / dīng / zhǔ / wǒ / yí / dìng / yào / zhù / yì / ān / quán

临行前，母亲切切叮嘱我一定要注意安全。

Before I left, my mother earnestly urged me to stay safe.