1. This is a thorny issue that’s unique to messaging apps. We expect ads to live alongside content we consume. We don’t expect them to crop up in our one-on-one communications. “The last thing you want in a personal conversation is a banner ad or pop-up that interrupts that,” Wray says. “It might work with more impersonal networks, but specifically within messaging, people hate traditional ads.”
3. There's plenty more to figure out in the coming months, plenty more to speculate about, plenty more to enjoy. Here's wishing all of our readers a safe and enjoyable holiday season, and a happy new basketball year.
5. n. 日历，月历，日程表
6. Temperatures in 2015 also shattered the previous record set in 2014 by 0.13C, according to Nasa.