他在决定是否接受这份工作时犹豫不决。

He ___wavered when deciding whether to accept the job offer.

篝火的光芒在风中摇曳。

The campfire's light ___wavered in the wind.

她在选择心理学还是生物学作为专业之间犹豫不决。

She ___wavered between choosing psychology or biology as her major.