Metallogeny
礦床成因論
??? 情景例句
during the week--
在本 內(nèi)
When you're down and blue, go to a comedy.
你灰心喪氣的時(shí)候，去看看喜劇。
The use of gloves was not introduced until 1860, when the Marquis of Queensberry drew up the first set of rules.
1860年昆斯伯里侯爵第一次為拳擊比賽制定了規(guī)則，拳擊比賽這才用上了手套。