25. More than a fifth of the planet’s bird species face extinction as humans venture further into their habitats and introduce alien __________ .
(A) dwellers
(B) predators
(C) drifters
(D) mariners

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統計： A(13), B(35), C(3), D(0), E(0) #667960

詳解 (共 1 筆)

#944966
drifter  流浪漢，漂流物

predator 掠奪者  食肉動物  alien predator  外來種

mariners  水手
 
dwellers  居民
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