Graveness and chariness are my best excellence.
认真和细心是我最大的长处.
Because they all to your meaning graveness.
因为他们都对你的意义重大.
Crisis jeopardizes national politics and economy in the matter of its outburst, graveness, influence and aftereffect.
危机由于其突发性 、 严重性 、 影响性和余波性,对于国家政治、经济危害极大.