你可以在树屋的每一侧安装一套有缆绳和螺栓的昂贵系统，或者安装一个房屋专用的自由浮动梁。
You can either install an expensive system of treehouse cables and bolts or rig your own free-floating beam.
他侧过身看着我，点头向我表示感谢，接着用吉他弹“活”了他的那首歌，我看着雷的手指在琴弦上跳动，仿佛那手指就是他自己，在自由地奔跑着。
He looked at me over his shoulder and nodded a thank-you before bringing his song to life on the guitar. I watched Ray's fingers dance across the strings as if they were himself, running free.
通过引入悬架导向作用、轮胎侧偏效应及有效路形概念，建立了15自由度整车振动模型。
By introducing guiding effect of suspension, side-slip of tires, and the concept of effective road input, a vehicle vibration model of 15 DOFs is set up.
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