So, bring you tongue tip to your alveolar ridge.

所以，将舌尖带到牙上。

So, t and d is used with the tongue going up towards what is called the alveolar ridge in your mouth.

因此，t 和 d 与舌使用， 朝向口腔中所谓的牙。

Spanish speakers will either tap the tip of the tongue to the alveolar ridge as in pero, or roll it as in perro, known as a trill.

西班牙语的人么像 pero 中那样用舌尖轻敲牙，么像 perro 中那样滚动舌尖，这被称为颤音。

In English, the R sound is known as the alveolar approximant, which means the tongue flicks backwards close to the alveolar ridge, but doesn't quite touch it.

在英语中， R 音被称为牙接近，这意味着舌向后轻弹靠近牙，但并没有完全接触它。

The different moving parts are known as articulators, and the main ones are the tongue, upper lip, lower lip, upper teeth, alveolar ridge, hard palate, soft palate, uvula, the pharyngeal wall, and the glottis.

不同的运动部件被称为发音器，主的是舌、上唇、下唇、上牙、牙、硬腭、软腭、悬雍垂、咽壁和声门。