No one knows for certain what happened, but it's a fair bet that it was not an accident.
没有人知道究竟发生了什么,但几乎可以肯定这并非意外。
Could you ask her to give Doug a call when she gets back? She has my number.
她回来后,你能不能告诉她给道格挂个电话?她有我的电话号码。
Why don't you buy a radio? Then you can listen to China Radio International or BBC English programmes on the radio.
你为什么不买台收音机呢?那样你就能听中国国际广播电台或者BBC英语广播节目了。