x, y and z, in terms of t, are given here.
这是x、y、z与t的关系。
So, we have a function of x, y, z, t, and we have another function here.
有一个关于x,y,z和t的函数。
What I'm integrating to is f of x of t and y of t.
我积分的是f，y
Because mottled bamboos did much for W. Y. t but access nothing.
因为斑竹为网一尽心尽力做了很多事，却没有获取任何一点回报。
Because mottled bamboos did much for W. Y. t but access nothing.
因为斑竹为网一尽心尽力做了很多事，却没有获取任何一点回报。
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