underlying strata.的用法和样例：
例句
- Using her unique feminism perspective, she panoramically described the life of the females of the lower strata in the society.
她以自己独特的女性视角下的女性文学，将下层女性的生存状态诠释得淋漓尽致。 - Surgical removal of all or part of a breast,sometimes including excision of the underlying pectoral muscles and regional lymph nodes,usually performed as a treatment for cancer.
乳房切除术，切除乳房或部分乳房的外科手术，包括位于下层的胸部肌肉和局部淋巴节，通常作为治疗乳腺癌而实施的手术。
