Translate the following sentence into English.
他的长寿秘诀是以乐观的态度面对可能出现的问题。
【正确答案】：
HIS SECRET OF A LONG LIFE IS TO TAKE AN OPTIMISTIC ATTITUDE TOWARDS PROBLEMS THAT HE IS LIKELY TO FACE.
【题目解析】：
核心：（他长寿的）秘诀是（以乐观的态度）面对（可能出现的）问题。
考点：长寿的秘诀secret of a long life；以乐观的态度take an optimistic attitude。