そんなに速く歩くな。

そんなに速く歩くな。

Don't walk so fast.

そんなに速(はや)く歩(ある)くな。

Sonnani hayaku aruku na.

そんなに (そんなに)

so much; so; like that

早い (はやい)

fast; quick; hasty; brisk; early (in the day, etc.); premature; (too) soon; not yet; (too) early; easy; simple; quick

歩く (あるく)

to walk

な (な)

(sentence end, mainly masc.) indicates emotion or emphasis; (used with masu stem verb) command; (used with dictionary form verb) prohibition

Readings: ソク、はや.い、はや-、はや.める、すみ.やか

Meanings: quick, fast

Readings: ホ、ブ、フ、ある.く、あゆ.む

Meanings: walk, counter for steps