n. 

动物
复 数: protozoa
近义词
n. 
词
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call on,
call option,
call out,
call sb up,
call sth off,
call the shots,
call the tune,
call to order,
call up,
call waiting,
相似单词
protozoea,
protozoiasis,
protozoic,
protozoologist,
protozoology,
protozoon,
protozoophage,
protozoosis,
protozootherapy,
protozygote,