orca
[名词]
虎鲸
Ex:
With
a
mighty
splash
,
the
orca
slapped
its
tail
against
the
water
,
sending
waves
rippling
across
the
surface
.
随着一声巨大的水花声,虎鲸用尾巴拍打水面,使波浪在水面上荡漾开来。
cetacean
[名词]
鲸目动物
Ex:
The
Blue Whale
,
the
largest
cetacean
and
the
largest
animal
ever
known
to
have
existed
,
feeds
primarily
on
krill
by
filtering
seawater
through
its
baleen
plates
.
蓝鲸,最大的鲸类和已知存在过的最大的动物,主要通过其鲸须板过滤海水来主要以磷虾为食。