Tensioner
n. 拉緊器, 張緊裝置；皮帶張力器
??? 情景例句
What's troubling you?
你有什么麻煩？
How long will you remain there?
你將會在那里逗留多久？
Early next morning, she saw a light ahead.
第二天凌晨，她看到前方有燈光，