ingenious adj. 有独创性的；机灵的，精制的；心灵手巧的
eg. He thinks it was an ingenious experiment and perhaps even representative of the future of advertising.
他认为那是一个巧妙的的试验，甚至可能是未来广告的典型。
eg. So we continue to listen out for the signal from aliens through ever more ingenious methods. But we are transmitting too.
我们用更精巧的方法继续聆听外星人发出的信号。但是我们也在发射信号。
词组学习：
1. be folded in half 可以对折
2. handy to carry around 随身携带
3. variable speed bicycle 变速自行车
4. traffic jam 交通堵塞，塞车
其他表达法：
The bicycle is easy to maintain because of its simple mechanical structure.
这款自行车因为构造简单所以容易保养。
The characteristic of this kind of type is of nonskid on wet road.
这款轮胎的特点就是在湿地刹车时不打滑。
实用句子背诵：
It can be folded in half and handy to carry around, especially useful during traveling and traffic jams.
它可以对折，可以随身携带，在旅行和交通堵塞时格外实用。
