He used to be a dunce at school.他上学时曾是个笨学生.Michael may have been a dunce at mathematics, but he was gifted at languages.迈克尔在数学上可能不太灵光，但在语言方面很有天赋。I was a dunce at chemistry.我在化学方面是个劣等生....
The country girl stood by the road, mesmerized at the speed of cars racing past.村姑站在路旁被疾驶而过的一辆辆车迷住了.I sat mesmerized long after the fairground closed.露天游乐场关门许久之后，我还痴迷地坐在那里。get mesmerized by family computer为游戏机所迷Jack walk...
He was a tubby little man in his fifties, with sparse hair.他50来岁，头发稀疏，身材矮胖。Many slopes are rock fields with sparse vegetation.许多山坡都是石头地，植被稀疏。The sparse line of spectators noticed nothing unusual.那一排稀稀落落的观众没留意到任何不寻常之处。...
The Sydney Opera House's roof is shaped like a ship's sails.悉尼歌剧院的顶部形似一艘船的风帆.The building straight ahead is Sydney Opera House.前面的那个建筑就是悉尼歌剧院.The Sydney Opera House opens.1973年的今天,悉尼歌剧院开张....