“凹处”怎么读？

手术很成功, 左边脸上原来那块凹处简直看不见了.The operation was successful. The cheek indentation was now just barely noticeable.这面孔上所仅有的小变动全在这两个凹处或瘪处.The only little change that the face ever showed resided in the two compressions or dints.我...

“凹处”的英语可以翻译为：ecession，pocket，pothole ...