例句與造句

1. america is a lecture-hall on a very extensive scale. the rostrum extends in a straight line from boston, through new york and philadelphia to washighton .
   美國全國是個極其龐大的講演廳。講壇從波士頓起，經(jīng)過紐約、費(fèi)城到華盛頓連成一條直線。
2. It's difficult to find lecture-hall in a sentence. 用lecture-hall造句挺難的