天涯海角 the ends of the earth
Explanation
形容距离非常遥远的地方，也比喻人相隔很远。
Describes a place that is very far away, or the great distance between people.
Origin Story
唐朝诗人李白，一生浪迹天涯，游历名山大川，留下无数千古绝句。他曾写下“蜀道难，难于上青天”的千古名句，描绘了蜀道险峻的景象，也表达了他对家乡的思念。一次，他从扬州出发，准备去长安，途经湖北黄鹤楼，登上楼顶，极目远眺，只见浩浩长江，奔腾不息，心中感慨万千。他想起自己从小就失去了父母，在漂泊不定的生活中，奔走各地，寻觅自己的理想与抱负。如今，再次远行，前往遥远的长安，不知道何时才能回到故乡，与亲友团聚。他无限伤感，不禁吟诵起一首诗：孤帆远影碧空尽，唯见长江天际流。乡关何处？天涯海角，何时才能归去？
Li Bai, a Tang dynasty poet, spent his life wandering the world, traveling through famous mountains and rivers, leaving behind countless immortal poems. He once wrote the famous line "The road to Shu is difficult, more difficult than ascending to heaven", depicting the dangerous scenery of the road to Shu, and also expressing his longing for his hometown. Once, he set off from Yangzhou and prepared to go to Chang'an. Passing through the Yellow Crane Tower in Hubei, he climbed to the top of the tower and looked far into the distance. He saw the vast Yangtze River flowing endlessly, feeling mixed emotions in his heart. He remembered that he had lost his parents when he was young and, in a life of constant wandering, traveled all over the country, seeking his ideals and ambitions. Now, traveling again, he was heading to the distant Chang'an, not knowing when he would be able to return home and reunite with his family and friends. He was infinitely sad and could not help but recite a poem: The solitary sail disappears far into the blue sky, only the Yangtze River flows to the horizon. Where is my hometown? At the ends of the earth, when will I be able to return?
Usage
常用作宾语，形容地方偏远或人相隔很远。
Often used as an object to describe a remote place or the great distance between people.
Examples
-
虽然我们相隔天涯海角，但是我们的友谊不会因此而减弱。
suīrán wǒmen xiānggé tiānyá hǎijiǎo, dànshì wǒmen de yǒuyì bù huì yīncǐ ér jiǎnruò
Although we are separated by the ends of the earth, our friendship will not be weakened by this.
-
他漂泊天涯海角，四处奔波，寻找机会
tā piāobó tiānyá hǎijiǎo, sìchù bēnbō, xúnzhǎo jīhuì
He wandered around the world, working hard everywhere he went, looking for opportunities