第一时间dìyīshíjiān
Meanings
1. in the first moments (of sth happening)
2. immediately (after an event)
3. first thing
Characters used
Examples3
Please let me know as soon as it's decided.
If there's a better solution, then I'll notify you about it as soon as possible.
If anything important comes up, tag me so I can see it right away when I check messages.