Replies to comment 60627820

空集(empty set) 2016-09-19 22:10

θ¬θ¬δ½ θƒ½ε–œζ­‘ζˆ‘ηš„η•«ε‘’γ€‚ε―δ»₯ζˆ³ζˆ‘οΌˆζ²’ε•ι‘Œηš„οΌ‰οΌŒεͺζ˜―ζœ‰ηš„ζ™‚ε€™δΈδΈŠpη«™οΌŒε―θƒ½ε›žθ€‡δΏ‘ζ―ζœƒεΎˆζ™š

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