Swimming in perfect formation, they flick their tails in unison以完美的编队状态行动，统一摆尾

in unison:完全一致地； 同时地

The last verse will be sung in unison.

歌词的最后部分要齐唱。

They regroup and assess the damage.它们重新聚集，检视冰裂的情况

assess:评定；评估；估算[用作及物动词, ～+ n./pron]

Can you assess my chances of winning?

你能估计出我有几分获胜的机会吗？

He's so lazy that it's difficult to assess his ability.

他懒惰得很难对他的能力做出评估。

常用短语:

assess at:估计...价值为

They assessed the value of the house at 60,000 pounds.

他们估价这房子值六万英镑。

The ice floe is breaking up.大浮冰破裂了

break up:破碎

They decided to break up the partnership.

他们决定终止合作关系。

The wolves of the sea move on in search of easier quarry.海中的狼群继续寻找更易捕的猎物

in search of:寻找； 寻求

He is in search of a better new life.

他在寻求更加美好的新生活。