Life has its ups and downs, but it certainly has its rewards.
人生有沉也有浮,但是无论怎样都确有其价值。
How many years have you been playing pingpong?
你打乒乓球多少年了?
There are even stories of half-trained elephant calves who have refused to feed and pined to death when by some unavoidable circumstance they have been deprived of their own trainer.