Please note: the opening of the ear plug must not be blocked by cerumen or oil.

请注意：耳塞开孔不得被耵聍或油堵死。

You have never seen to sit to ascend the lesson of piece now at the most anterior Huang Da Yi and necessarily take an ear plug.

你没看见坐在最前面的黄达义现在上张的课，必带耳塞。

She took the plug of cotton wool from her ear.

她从耳朵中取出棉毛耳塞来。

It is operated by a microcontroller and powered by electromagnetic induction through the skin or through a plug implanted behind the patient's ear.

通过皮肤上面的或者插在病人耳朵后面的电磁感应器，就可以驱动一个微星控制器来操作人造心脏。

He put plug in his ear because the noise was too loud.

因为太吵闹了，他用耳塞堵住了耳朵。