解释：齐国是强国，利用它的强大进攻宋国，让他逞强，燕国就可以乘机打败齐国；齐国是大国，利用它的大国野心吞并宋国，增加土地，燕国就可以乘机进攻。
Singing is not only my career, but also my passion.
Life is too short to be anything but happy.
CRISPR提醒我们，大自然是最伟大的创新者。
"You have to be willing to be misunderstood if you're going to innovate."
伟大是许多小事做好的结果。