Translate the following sentences into Chinese or English.
1. 但是，看来只有毒杀蛇的药粉。
2. 第二天早晨我的手里拿了一个捕鱼的小网。
3. The criteria are so strict that it is difficult to get new ideas accepted unless they are truly novel.
4．Do you know the stages every inventor must go before they can have their invention approved?
