Lesson 10 cabin depressurization-Listen and Repeat-6[音频]
查看答案
Lesson 10 cabin depressurization-Listen and Repeat-7[音频]
Lesson 10 cabin depressurization-Listen and Repeat-8[音频]
Lesson 10 cabin depressurization-Listen and Repeat-9[音频]
Lesson 10 cabin decompression Listen and Repeat-10[音频]