Housed within the system unit, a sound card contains connectors that project from the back of the computer so that you can attach speakers, headphones, and a microphone.

声卡安装在系统机箱内，它在计算机后面有一些突出的接口，可供用户将扬声器、耳机和麦克风插在上面。

youdao

A decibel is a standard unit of sound, and normal conversation is around 60 decibels.

分贝是声音的标准单位，正常谈话的声音大约在60分贝左右。

youdao

But we always make sure we put it there, because when you click on the unit, it's the portrait and the little sound cues that give them character.

但我们总是确保游戏中有头像，因为当你点击单位时候，正是头像和轻微的声音赋予了这些单位性格。

youdao

I think that word "see" deserves the accent there, and so it's--the first unit of sound isn't quite normative.

我觉得“看“是重音，这是第一个音律不规则的地方。

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O'Neill has built a defensively sound unit, that explodes going forward.

BBC: Lee Dixon's tactical view

The sound quality from the unit was definitely decent under the default EQ settings.

ENGADGET: iRiver H10: Hands-on review

Positioned as a small speaker with big sound, the ovular unit features a top-mounted Lightning dock for iPhones and iPod Touches.

ENGADGET