This is the 21st most frequent Chinese word.
及
"及" means "and," "reach," or "as well as."
Here, '及' is used adverbially as part of '及早', meaning 'early' or 'in advance'.
他及早完成了任务。
He completed the task ahead of time.
In this sentence, '及' means 'and', connecting related topics or items.
这是法律及社会规范所要求的。
This is required by laws and social norms.
Here, '及' is used to emphasize urgency or promptness in action within the context of '尽及'.