VOA慢速英语:苏格兰展示了恐龙脚印的证据

fossil – n. the remains of an ancient organism

paleontologist – n. the science that deals with the fossils of animals and plants that lived very long ago especially in the time of dinosaurs

track – n. markings; something showing evidence of movement

beach – n. a sandy or stone-filled area, usually between the ocean and land

expose – v. to leave (something) without covering or protection

lap – v. washing against something with a gentle sound

toe – n. any of five extensions at the end of the human foot

claw – n. a curved, pointy hard surface on each finger or toe in birds and some animals

spiked – adj. having sharp points : formed into points

evolution – n. the process by which changes in plants and animals happen over time

frenzy – n. a period of wild behavior