化验员：两手放成这样，双肩前展，下巴搁在这儿。

Technician: Put your hands like this and your shoulders forward, rest your chin here.

youdao

化验员：两手放成这样，双肩前展，下巴搁在这儿。

Technician: Put your hands like this and your shoulders forward, rest your chin here.

youdao