帮我解决英语难题(汉译英2）

One,he knows deep in its heart,they will never be goodbye.(In one's heart) 2,they agreed to publication of his first book,he finally felt like I was successful.(On the road to) 3,he stopped by a drink (a sip of) water,then continued his speech.(Resume) 4,the big projects so busy this year,we can arrange a vacation of.(Engage; So much that) 5.the oxygen (oxygen) is the most important gas a,as liquid water is the most important type of the same.(Just as)