如果你需要帮助，后层创建代码。

If you want help on that, post your layer creation code.

youdao

此外氯还会导致一口黄牙，因为酸性物会剥蚀掉釉质，致使后层颜色较深的牙质显露出来。

This can result in yellowing teeth - because the acid strips the enamel and starts to reveal darker-coloured dentine underneath.

youdao

目的眼睑恶性肿瘤切除术后采用自体硬腭黏膜替代眼睑后层进行眼睑再造，并对其临床效果进行评价。

Objective To evaluate the clinical effect of the eyelid reconstruction using hard palate mucosa graft after resection of malignant tumor of eyelid.

youdao

s a single cell layer of a damage cochlea.

损伤后的耳蜗只有一层薄薄的细胞膜，There’

斯坦福公开课 - 7个颠覆你思想的演讲课程节选