This is the 486th most frequent Chinese word.
来到
"Come to" or "arrive at."
来到 is used here to indicate the action of arriving at a specific location (the school).
我今天早上来到学校准备参加会议。
I arrived at the school this morning to prepare for the meeting.
来到 is used metaphorically to signify the arrival of a season (spring).
春天来到了，这里的花儿都开始盛开了。
Spring has arrived, and the flowers here have started blooming.
来到 is used here to express a welcoming sentiment to someone reaching or coming to a location (my hometown).