这个单词在句子中很重要。

This ___word is very important in the sentence.

我想私下跟你说几句话。

I'd like to have a ___word with you in private.

她向我保证会保守秘密。

She gave me her ___word to keep the secret.

听到将军的命令，士兵们立即列队。

At the ___word of the general, the soldiers immediately formed ranks.