重點講解：
1. at the same time
同時；
eg. Different things are happening in these two worlds at the same time.
兩個不同的世界卻在同一時刻發生著不同的事lcAChA7qGi。
eg. It was busy and crowded and yet at the same time peaceful. This was a paradox she discovered over and over again . . .
這里繁忙而擁擠，但同時又很安靜，這是她一再發現的一種矛盾現象[8@D|j@5m932H[vg^j。
2. at work
干活兒；做工作；忙著做事；
eg. He is currently at work on a novel.
他這會兒正忙著寫一篇小說(F~o;,Z4pml5ct&Q。
eg. Television cameras were invited in to film him at work.
電視臺攝像師被請進來拍攝他工作的鏡頭7yusHwu5n~l9.。
3. fresh air
戶外空氣；（尤指未受污染的）新鮮空氣；
eg. 'Let's take the baby outside,' I suggested. 'We all need some fresh air.'
“我們帶寶寶出去走走吧，”我提議;ERmCQ2G=n@1Ac*7C-E。“我們都需要呼吸一些新鮮空氣m3iR7FxsOxjL_[(uG)]。”
eg. I hope you can enjoy the fresh air and great views here.
我希望您可以享受這里的清新空氣和宜人風景dTCN^qUnkeaHgse。