Life isn't always smooth.

Life doesn't always have obstacles.

Life isn't always happy.

Life doesn't always have suffering.

Sometimes life is smooth.

Yet it also has obstacle.

Sometimes life is happy.

But sometimes life brings sadness.

人生不总是平坦的。

人生不总是充满阻碍的。

人生不总是开心的。

人生不总是苦难的。

有时侯人生是平坦的，虽然它仍会有障碍。

有时侯人生是开心的，但有时候人生中也有悲伤。