Rhyodacite
流紋英安巖
??? 情景例句
Now would be a good time, I think, for some introductions.
我想，下面是作些介紹的時(shí)候了。
He hesitated at nothing.
他對(duì)任何事都不會(huì)猶豫不決。
It is impossible to give a satisfactory explanation for a pot-holer's motives.
要想對(duì)洞穴探險(xiǎn)者的動(dòng)機(jī)作出滿意的解釋是不可能的。