nì / jǐ / jīng / tōng / cháng / chéng / qún / huó / dòng / bǐ / cǐ / zhī / jiān / pèi / hé / de / fēi / cháng / mò / qì

逆戟鲸通常成群活动，彼此之间配合得非常默契。

Orcas usually travel in groups and coordinate closely with one another.