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46.
47.
48.
49.
50.
A wristband can be used to make and answer phone calls, but a normal watch cannot.
47.
Wristbands are popular with teenagers. / Wristbands are popular among teenagers.
48.
People can know how far they've run or how many steps they've got with a wristband and know whether they reach their aims or not.
49.
They think wearing wristbands for a long time makes their children under radiation all the time.
50.
Everything has both good points and bad points.
答案：
46.A wristband can be used to make and answer phone calls, but a normal watch cannot.
47.Wristbands are popular with teenagers. / Wristbands are popular among teenagers.
48.People can know how far they've run or how many steps they've got with a wristband and know whether they reach their aims or not.
49.They think wearing wristbands for a long time makes their children under radiation all the time.
50.Everything has both good points and bad points.
47.Wristbands are popular with teenagers. / Wristbands are popular among teenagers.
48.People can know how far they've run or how many steps they've got with a wristband and know whether they reach their aims or not.
49.They think wearing wristbands for a long time makes their children under radiation all the time.
50.Everything has both good points and bad points.
How to Become an Inventor?
Many teenagers wish to become inventors when they grow up, including some of my classmates.
Many teenagers wish to become inventors when they grow up, including some of my classmates.
In my opinion, the following advice may be helpful for those who want to become an inventor. First, we need to learn as much knowledge as possible. It's necessary for us to understand how things work. And the habit of thinking is really important. Second, we should be interested in something. Interest is the best teacher. Third, we need to be creative. It needs time, so just take it easy and practice more. In a word, we should keep trying hard and never give up. Don't be afraid of failure.
答案：
How to Become an Inventor?
Many teenagers wish to become inventors when they grow up, including some of my classmates. In my opinion, the following advice may be helpful for those who want to become an inventor.
First, we need to learn as much knowledge as possible. It's necessary for us to understand how things work. And the habit of thinking is really important. Second, we should be interested in something. Interest is the best teacher. Third, we need to be creative. It needs time, so just take it easy and practice more.
In a word, we should keep trying hard and never give up. Don't be afraid of failure.
Many teenagers wish to become inventors when they grow up, including some of my classmates. In my opinion, the following advice may be helpful for those who want to become an inventor.
First, we need to learn as much knowledge as possible. It's necessary for us to understand how things work. And the habit of thinking is really important. Second, we should be interested in something. Interest is the best teacher. Third, we need to be creative. It needs time, so just take it easy and practice more.
In a word, we should keep trying hard and never give up. Don't be afraid of failure.
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