慢速英语:Why It's Harder to Sleep in New Place

音频下载[点击右键另存为]

同步字幕下载[点击右键另存为]

1. appear vi.发表; 出现，显现
例句：They appear to be very sensitive to mildly corrosive environments.
它们似乎对轻度的腐蚀环境非常敏感。

2. laboratory n.实验室; 实验课; 研究室
例句：At present such beds are only laboratory curiosities of theoretical interest.
目前这类体层只是实验室里理论上可探索的特例。

3. hemisphere n.半球; 地球的半球
例句：The American navy would defend and patrol the Western Hemisphere.
美国海军将防御和巡逻西半球。