OK, sir, just sit tight, and we'll have an ambulance there in about ten minutes.
好的,先生。你就在那边等着,救护车10分钟之内到。
In this way self-confidence grows, first from mastering a subject, then from being able to take about it.
这样,你自信心不断增强,先是因为掌握一门学问,接下来是因为能够就此发表见解。