These include nearly 100 species of lemur, six of which are deemed critically endangered.

这些包括近100个狐猴物种，其中六种被认为属于严重濒危物种。

youdao

Six of the seven known sea turtle species are listed as vulnerable, endangered, or critically endangered on the International Union for Conservation of Nature's red list of Threatened species.

已知的海龟物种中的七分之六在国际保护受威胁物种联合会的自然红名单上，被登记为脆弱，濒危，甚至极度濒危物种。

youdao

Since then, four species have gone extinct, and the remaining six are all on the IUCN’s critically endangered list.

到目前为止，有四成的老虎已经灭绝了，剩下的六成都列于国际自然保护联盟的极度濒危名单之内。

youdao

Earthquake-ravaged Sichuan province suffered through four aftershocks Tuesday, injuring at least 63 people -- six of them critically -- and causing the collapse of more than 420, 000 homes, according to Xinhua.

CNN: China evacuates 160,000 over quake lake fears

Cole won six Grammys for her 1991 critically acclaimed album "Unforgettable: With Love, " a jazzy tribute to her father.

CNN: Natalie Cole kidney came from deceased fan

The evening's entertainment featured six Rock and Roll Hall of Famers, a few critically acclaimed young artists -- and The Boss himself.

CNN: February 10, 2013 -- Updated 0155 GMT (0955 HKT)