追根究底
There are several theories about why Neanderthals died out. For decades, the most popular theory was that humans developed more quickly than Neanderthals. Many scientists believed that as humans became smarter, they started several wars to wipe Neanderthals out. Perhaps they did so to gain more control over food and other resources. This makes sense, as they believe humans began arriving in Europe in large numbers 40,000 years ago.
Others believe that Neanderthals vanished due to natural reasons. As the number of Neanderthals was low and they were in danger of dying out, any sudden changes in their environment could have caused their extinction.
Many scientists believe the theory that the universe is getting larger.
很多科學家相信宇宙正在變大的這個說法。
Developing a theory and proving it are very different things.
研發一套理論和加以證實是兩碼事。
Well, that sounds good in theory, but I don’t know if it will work in practice.
嗯,那在理論上聽起來不錯,但我不知道它實際上是否可行。
The waitress wiped the table with a damp cloth.
這個女服務生用一塊溼抹布擦拭桌子。
The typhoon wiped out the whole village.
颱風將整座村莊破壞殆盡。
The waiter gave the table in the café a quick wipe.
服務生很快地擦拭咖啡廳的桌面。
Daisy couldn't wipe the image of the accident from her thoughts.
黛西無法把那場事故的畫面從腦中抹去。
The constant noise of the machine is driving me crazy.
機器不斷發出的噪音快把我逼瘋了。
The weather has been constant this week.
這星期的天氣很穩定。
The temperature in the fish tank remains a constant.
水族箱裡的溫度維持恆溫。
No matter what life threw at them, their love for each other remained a constant.
不論遇到什麼困難,他們仍對彼此堅貞不移。
The constant noise of the machine is driving me crazy.
機器不斷發出的噪音快把我逼瘋了。
According to the weather forecast, the weather will be constant this week.
根據氣象預報,這週的天氣會很穩定。
If you are lucky, you can find some animal fossils on the beach.
你運氣夠好的話,在海灘上會找到一些動物化石。
The horseshoe crab is an example of a living fossil.
鱟是一個活化石的例子。
Don’t listen to Ricky; he’s just an old fossil.
別聽瑞奇的,他只是個老頑固。
Scientists recently discovered two new kinds of fossil plants.
科學家最近發現了兩種新的化石植物。
Many scientists are now looking for energy sources that can replace fossil fuels.
科學家目前正在尋找能替代化石燃料的能源。
There are some theories about why the dinosaurs were wiped out.
關於恐龍被徹底消滅的原因有一些理論。
What Sean says doesn’t make sense.
尚恩說的話沒道理。
Polar bears are in danger of extinction.
北極熊有絕種的危險。