and a blue moon happen at the same time, we call it a super blue moon. It is rare (罕见的) to see... and a blue moon happen at the same time, we call it a super blue moon. It is rare (罕见的) to see. Usually ……

is the idea that people from one time period can go back or forward to another time period.Humans... that time was not, in fact, a smooth river, constant in its flow. It was, he said, something that could ……

for some time.It is not people who caused the colour change, but very small living things in the sea... give off light by themselves. If too many of these colourful living things get together in one place ……

to make that happen is to be kind and fair (公平的) to everyone all the time – not just on one special... could invite one or two girls you’d like to get to know better, but you’ll have more fun if you are good ……

). Who could believe the same thing would happen to astronauts (宇航员) in space?Recently, a computer virus... the Earth to the ISS. Surprisingly, it was not a one-off (一次性的) event."It doesn't often happen ……

to happen, then we could save many lives.In fact, scientists do try to predict (预测) when earthquakes... to work out when the next one will be.If the last one was seven years ago, one might happen soon ……

Disasters such as earthquakes, floods and fires can happen at any time. But are you prepared for these situations? Here’s what people in the US say: ……

, 2008, and warn people in Sichuan province of what would happen at 14:28 pm. If I could travel through time, I’d have to make sure no one suffered the devastating earthquake.Luo Yeming: If I could go ……

headlights drives towards the dog but turns in time to avoid hitting him. How could this happen?Answer ……

: That's too bad. How did that happen?Johnny: We played “Who could lean (倾斜) furthest out.... Round.*The customer is asking for information about time. The waiter takes it for a question about ……

“After six months of coronavirus chaos (混乱), many Americans are hungry for the first time... in September also pointed out that nearly one in eight households don’t have enough to eat. Parents ……

around 50,000 years ago, there have been few physical changes in our evolution. One argument... of evidence that we have continued to change over time. For example, our brains have become a little ……

such a situation could happen in our lives? Why is that?... to a worldwidetragedy(悲剧).Martin Niemoller was one of Germany's leadingpreachers(传教士) in the 1930s ……

such a situation could happen in our lives? Why is that?... to a worldwidetragedy(悲剧).Martin Niemoller was one of Germany's leadingpreachers(传教士) in the 1930s ……

such a situation could happen in our lives? Why is that?... to a worldwidetragedy(悲剧).Martin Niemoller was one of Germany's leadingpreachers(传教士) in the 1930s ……