米切尔的日程安排使他无法休假。Mitchel's schedule had not permitted him to take time off.埃米举起胳膊挥挥手。“再见,”她喊道。Amy lifted her arm to wave. "Goodbye," she called.他100米跑了11秒。He has been clocked at 11 seconds for 100 metres....
The greenhouse effect is well and truly with us.我们完全处于温室效应中。The specific impact of the greenhouse effect is unknowable.温室效应的具体影响无法知道。Carbon dioxide is the largest contributor to the greenhouse effect.二氧化碳太多是道致温室效应的最主要原因....