医生用注射器给病人注射了抗生素。

The doctor ___injects antibiotics into the patient with a syringe.

教练在休息时为球队注入了新的活力。

The coach ___injects new energy into the team during the break.

他巧妙地将新想法引入了讨论。

He skillfully ___injected fresh ideas into the discussion.