Her sudden appearance did not seem to perturb him in the least.
她的突然出现似乎一点也没有令他不安。
Stellar passings can perturb the orbits of comets.
行星的运行会使彗星的轨道发生扰动.
Venus, Earth, and other planets also perturb Mercury's motion.
金星, 地球和其他行星也使水星的运动受到摄动.
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