Tetrasome
四小體
??? 情景例句
For example, did you know that 1 in 4 teenagers has tried marijuana?
比如，你是否知道4個青少年中就有1位曾經吸過大麻？
The honest penny is better than the stolen dollar.
正當得到的一分錢，勝過偷來的一元錢。
I had an amusing experience last year.
去年我有過一次有趣的經歷。