Objective: to explore the relationship body mass index (BMI) during pregnancy and head presentation dystocia.

目的：探讨孕期体重指数(BMI)与头位难产的关系。

youdao

So during the presentation, the head of the company decided to start yelling at him.

FORBES: Kindness At The Office

Bill Squadron, Head of Bloomberg Sports, began the presentation by providing a brief overview of both products before introducing pitching guru Rick Peterson.

FORBES: Fond Reflections On The Winter Meetings

In June 2010, DECC's then head of science Dr Nafees Meah gave an internal presentation to colleagues about communicating climate science.

BBC: When the word 'saintly' can be made a state secret