The needle wavered for several seconds before settling on a value the team could reproduce.
指针摇摆了几秒，才停在一个团队能够重复得到的数值上。
Which choice best defines “waver”?
C — To hesitate; fluctuate.. “waver” means To hesitate; fluctuate..
Which word means “To hesitate; fluctuate.”?
C — waver. “waver” means To hesitate; fluctuate..
waver — To hesitate; fluctuate.. In Chinese: 动摇；踌躇.
waver is pronounced //ˈweɪvə//.
The needle wavered for several seconds before settling on a value the team could reproduce. (指针摇摆了几秒，才停在一个团队能够重复得到的数值上。)
hesitate, falter, fluctuate — all close in meaning to waver (To hesitate; fluctuate.).
persevere, steady — each the opposite of waver (To hesitate; fluctuate.).
Yes. waver is on the SAT Prep Difficult list — the higher-register words that decide the hard questions. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
wave → 摇摆不定。