拟声词的能指和所指之间的关系并不是完全任意的。

For onomatopoeic words, there does exist a certain connection between the signifier and the corresponding signified.

youdao

Eclipse完全可定制，您可以将视图移到您希望的任意位置。

Eclipse is completely customizable, and you can move views around anywhere you want.

youdao

本课程不提供职业资格认证，但它与第一年的风景园林建筑硕士课程是完全兼容的，学生可以在这两门课程之间任意转换。

The course does not provide professional accreditation, but it is entirely compatible with the first year of the ma in Landscape Architecture, and students may transfer between these courses.

youdao

You've got to realize that in calculus, the symbols that you call x and y are completely arbitrary.

你应该明白在微积分中,选x还是y当符号是完全任意的

耶鲁公开课 - 基础物理课程节选