背要直，只弯两膝。
就解决方式而言，脊柱前弯并非彻底，Shapiro教授说，因为孕期妇女仍普遍抱怨背疾和疼痛。
As solutions go, the forward spine is only partly successful, Prof. Shapiro said, since women still commonly complain of back trouble and pain during pregnancy.
盐上构造包括盐上滚动背斜、断弯-断展背斜、背冲断块、逆冲断层遮挡构造和盐推覆构造等；
The suprasalt structure includes suprasalt rolling anticline, fault-bending anticline, suprasalt pop-up, thrust screened structure and salt nappe.
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