44期-每天记5单词

1.terrestrial

adj.

[definition]:陆地的；陆栖的；陆生的；地球的--terrestrial creatures.

[synonyms]:earthly,worldly,telluric（源自地球的），global,native

[antonyms]:extraterrestrial（外太星的）

 

2.mammal

n.

[definition]:哺乳类动物；哺乳动物类；哺乳动物哺乳类动物--aquatic mammal水生哺乳动物.

 

3.cetacean

n.

[definition]:鲸类--in cetaceans.

 

4.speculate

v.

[definition]:投机；推测；猜测；推断--it has been speculated that...

[synonyms]:wonder,conjecture,guess,hypothesize（假设）,reason

[antonyms]:know,decide

 

5.blowhole

n.

[definition]:（鲸头顶的）呼吸孔；（供海豹等呼吸的）冰窟窿

回顾：1.terrestrail 2.mammal 3.cetacean 4.speculate 5.blowhole