二话没说.(Èr huà méi shuō.)without saying anything; without a word

Explanation

“二话没说”用作状语；指很干脆地做某事，或者什么也没说就把某件事做好了，表示动作很快。也说“二话不说”。
Used as an adverbial modifier, “二话没说” refers to take action quickly without saying anything. We also can say “二话不说”.
Words:

年轻人niánqīnɡ rén:young man;
河hé:river.

Sentences

1、Niánqīngrén èr huà méi shuō jiù pǎo huí le jiā.
年轻人二话没说就跑回了家。
Without a word, the young man ran back quickly to his home.
2、Kàndào yǒu rén diào jìn hé lǐ ，tā èr huà méi shuō jiù tiào jìn hé lǐ qù jiù rén le .
看到有人掉进河里，他二话没说就跳进河里去救人了。
He jumped into the river, without saying anything when he saw someone fell into the water.