to direct all your attention and efforts toward one thing
把全部注意力和努力集中在一件事情上 (ba quanbu zhuyi li he nuli jizhong zai yi jian shiqing shang)
"The team needs to zero in on the main problem before making changes."
"团队需要在做出改变之前专注于主要问题。" (tuandui xuyao zai zuochu gaibian zhiqian zhuanzhu yu zhuyao wenti)
to work extremely hard
To investigate more thoroughly or find out more details.
to be supportive of someone
a sudden and unexpected event or news
something that suits one’s interests or abilities perfectly
to investigate or examine something