# 2.2.6. `s/z`

`s/z` 对所有人来说都没有什么具体的难度。`s/z` 发声时起始的舌尖位置贴近但没有接触到牙齿和牙龈的接缝处 —— 即，位置 ②（参见 [1.4](1.4-articulators)）。

The `s/z` sounds don't really pose a challenge for most people. When producing these sounds, the tip of the tongue is close to, but not touching, the *seam* between teeth and gums, i.e. position ② (as described in [1.4](1.4-articulators)).

![articulator-tongue-tip-sz](/images/articulator-tongue-tip-sz.svg)

需要注意的是，`s` 之后的 `p/t/tr/k` 会被浊化，相应读成 `b/d/dr/g`（但是，音标标注却保持原样）：

It's important to note that following an `s`, `p/t/tr/k` are voiced, meaning they are pronounced like `b/d/dr/g` respectively, while the phonetic annotations remain unchanged.

> * *speak* `/spiːk/` → `/sbiːk/`<span class="speak-word-inline" data-audio-us-male="/audios/us/speak-us-male.mp3" data-audio-us-female="/audios/us/speak-us-female.mp3"></span>
> * *student* `/ˈstudənt/` → `/ˈsdudənt/`<span class="speak-word-inline" data-audio-us-male="/audios/us/student-us-male.mp3" data-audio-us-female="/audios/us/student-us-female.mp3"></span>
> * *school* `/skuːl/` → `/sguːl/`<span class="speak-word-inline" data-audio-us-male="/audios/us/school-us-male.mp3" data-audio-us-female="/audios/us/school-us-female.mp3"></span>
> * *frustrate* `/ˈfrʌˌstreɪt/` → `/ˈfrʌˌsdreɪt/`<span class="speak-word-inline" data-audio-us-male="/audios/us/frustrate-us-male.mp3" data-audio-us-female="/audios/us/frustrate-us-female.mp3"></span>

另外，英文的辅音并没有长短区分 —— 有些语言的辅音是有长短区分的，虽然亚洲语言基本都没有这种差别。然而，英文的 `f/v`、`s/z`、`ʃ` 是可以拉长的，尤其是 `s/z`。

In addition, in English, there's no differentiation between long and short consonant sounds. This is a feature found in some languages but is generally not present in Asian languages. However, in English, the sounds of `f/v`, `s/z`, and `ʃ` can be lengthened, especially `s/z`.