This is the 2823rd most frequent Chinese word.
幸好
Fortunately; luckily.
The term '幸好' emphasizes the fortunate and timely arrival of the doctor during an emergency.
在紧急关头，幸好医生及时赶到。
At the critical moment, luckily the doctor arrived in time.
The word '幸好' is used to express relief for a fortunate circumstance in the situation described.
幸好今天没下雨，否则计划就泡汤了。
Fortunately, it didn't rain today, otherwise the plan would have been ruined.
Here '幸好' highlights the fortuity of the timely reminder preventing an oversight.