(hot enough to)make rocks and metals melt—sweltering ❍ 正是六月前后，炎炎火日当天，～之际，只得赶早凉而行。(《水浒全传》335)It was now about July,and the blazing sun was hot enough even to melt the gold in the quartz. Therefore they always walked during the early morning when it was a little cool.