1、The baby's skin was so soft and smooth, without a single ruga.
婴儿的皮肤非常柔软光滑，没有一条皱纹。
2、As we age, our skin begins to develop more rugae.
随着年龄的增长，我们的皮肤开始产生更多的皱纹。
实用场景例句
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商务邮件
Our new medical device provides high-resolution imaging of the gastric ruga for accurate diagnosis.
我们的新型医疗设备提供胃皱褶的高分辨率成像，以实现准确诊断。
学术写作
The function of the gastric ruga is to allow for expansion of the stomach during food intake.
胃皱褶的功能是允许胃在进食时扩张。
旅游出行
The tour guide pointed out that the ruga-like formations in the cave were thousands of years old.