The spokesman said the tone of the letter was very friendly.发言人说信函的语气非常友好。She was somewhat unapproachable but I'm sure she wanted to be friendly.她有些不好接近，但我确信她想表现得友好一些。On balance, the book is a friendly, down-to-eart...
New Japanese cars averaged 13 km to the litre in 1981.1981年，新型的日产汽车平均每升汽油能跑13千米。Our speed averaged out at 50 km an hour.我们的平均速度是每小时50公里.For those uninitiated in scientific ocean drilling, the previous record was a little...