1·Esperanto was invented as an auxiliary language.
世界语是作为辅助语发明的。
—— 《牛津词典》
2·Before silos were invented, cows gave less milk during winter because they had no green grass to eat.
筒仓发明之前，因为没有青草可以吃，奶牛在冬天产奶量减少。
—— 《柯林斯英汉双解大词典》
3·Who invented the tape recorder?
录音机是谁发明的？
4·When was the telephone invented?
电话是什么时候发明的？
5·When were matches invented?
火柴是什么时候发明的？
1·He invented a new game, but it never really caught on.
他发明了一种新的游戏，但从未真正流行起来。
—— 《牛津词典》
2·He is said to have invented the sport of celebrity-watching.
据说是他发明了观赏名人这项活动。
—— 《柯林斯英汉双解大词典》
3·He invented a candle clock.
他发明了一种蜡烛钟。
4·Who invented traffic lights?
谁发明了交通灯？
5·He invented light, right?
他发明了光，对不对？