My face went crimson (which it does out of sheer funk).我的脸变得通红(我极度紧张时就会这样)。

a mixture of experimental jazz, soul, and funk实验爵士乐、灵乐和放克乐的混合

If he funks it, he will confirm the impression of cowardice given by his recent letter.如果他对此畏缩, 那么在他最近那封信里给人留下的懦弱印象就被坐实了。