Perplexity says the new tool will allow users to avoid complex keyword searches and find patents using natural language searches instead.

The twin crises at the heart of the government shutdown fight in Washington are coming to a head. The federal food assistance program is facing delays and uncertainty. Meanwhile, millions ...

我们总是开始很美，过程很累，结局很悲，清醒很难。 4、我们起劲地干了起来，一个下午就把整所房子打扫乾净了。 17、最佳的报复不是仇恨，而是打心底发出的冷淡，干嘛花力气去恨一个不相干的人。 dāng shí ， cháng jīn hú yù shàng le 50 nián bù yù de yán hán ...