它的振动幅度取决于引力场的强度。Its oscillation depends on the strength of the gravitational field.振动幅度的大小决定声音的大小.The amplitude of the vibration determines the loudness of the sound.膜片振动,这使得周围的空气也动荡起来.The diaphragm vibrates , thus setti...
阿富汗空军正用直升机向被围城镇提供补给。The Afghan air force was using helicopters to supply the besieged town.这些补给要卸下来装上直升机。The supplies need to be offloaded and put on helicopters.各种补给都不稳定，食品也短缺。Supplies of everything are unreliable, food...
Hemingway suppresses emtion, Wolfe engulfs the reader in feeling.海明威感情压抑, 沃尔夫却把读者卷进感情的漩涡.Consumption ideological trend engulfs the entire world at present age.当今时代,消费主义呈现席卷全球之势.And it matters because the war that engulfs...