When 一 下 yíxià is preceded by a verb, it has the following two functions.

1. It is used as a time measure to imply that an action lasts for a short time1）wǒ yònɡ yí xià hǎo mɑ ？ 我 用 一 下 好 吗 ？ Could I use it for a little while?2） wǒ chūqù yíxià. 我出去一下。 I go out for a little while.2. Verb 一 下 yíxià is used to soften the tone of voice, as leaving a verb at the end of a sentence sounds too definite, or even rather crude.There are two other formulas that have the same function.1). Reduplication of verbs, as inwǒ ɡěi nǐ jiè shào jiè shào 。 。 。 。 。 。我 给 你 介 绍 介 绍 。 。 。 。 。 。Let me introduce you...wǒ xiān xiǎnɡ xiǎnɡ 。我 先 想 想 。Let me think (about it) first.2). The verb 一 yi verb pattern, as iqǐnɡ shuō yī shuō 。请 说 一 说 。Please talk about it.

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