【正文】
,飛機(jī)已經(jīng)起飛了。 ( by the time) By the time he arrived at the airport, the plane had taken off. 2. 在校園里,車速被限制在每小時(shí) 10 英里。 ( be limited to ) On campus, the car speed is limited to 10 miles per hour. 3. 這對(duì)雙胞胎姐妹 ( twin sisters) 之間的不同之處在于:一個(gè)依賴父母,另一個(gè)卻很自立。( one one’s own ) The difference between the twin sisters is that one is dependent on her parents, and the other is on her own. 4. 一方面汽車有用,可另一方面也造成污染。 ( pollution) , (on the one hand... on the other han