People migrate to cities like Jakarta in search of work.人们为找工作而迁移到雅加达这类城市里。Swallows migrate south in winter.燕子在冬天迁徙到南方。These birds migrate northwards in spring and southwards in fall.这些鸟春天向北迁徙,秋天向南迁徙....
Fractures of the nose may be associated with septal tractures and hematomas.鼻骨骨折可伴有中隔骨折和血肿.This can tear the tiny stretched blood vessels and cause bleeding and hematomas.这样会把绷紧了的小血管撕裂,引起出血和脑血肿.Hematomas and blood in the...