比如说法语，有很多圆唇元音。
是鼻韵母。在发第一个元音时，首先要圆唇，然后，很快滑向后一个音节。
Is a nasal final. When pronounce the first final, you should round your lips, and then it glides quickly to the second vowel.
小熊肥皂泡，能用作肥皂泡吹气层次治疗，以増强腹腔分级调控、口腔气流控制、上颚软口盖活动性、圆唇和舌头后缩。
The Bubble Bear, when used as part of the Bubble Hierarchy, can increase abdominal grading, controlled oral airflow, lip rounding, and tongue retraction.
将密封圈的外圆和密封唇上涂上一层薄薄的凡士林。
Thinly coat sealing lip and outer circumference of sealing ring with vaseline.
单密封唇V形弹簧加强，适用于转轴圆度不佳或偏摆较大的密封。
Single lip with "V" spring reinforced, suitable for poor roundness and largely swung rotary shaft sealing.
单密封唇V形弹簧加强，适用于转轴圆度不佳或偏摆较大的密封。
Single lip with "V" spring reinforced, suitable for poor roundness and largely swung rotary shaft sealing.
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