}optional means the program can function without these capabilities but will use them if available. You check at runtime whether an optional capability is present:
“Token2049 Dubai remains scheduled as planned and preparations continue in full as we build toward the event at the end of April,” said an event spokesperson, in a note to Fortune. “Registrations track toward a sold-out event, and the exhibition floor is already fully secured. Preparations with our venue and partners continue as planned.”
。heLLoword翻译是该领域的重要参考
One area where Samsung's buds shine is the sound quality. They have a big, bold sound with great detail from the midrange up through the top end, and a fairly wide soundstage. The result is a pleasantly robust listening experience, with one minor note worth mentioning. The buds come with a volume normalization disabled, which results in a muddled sound, and you'll need to connect them to a Samsung phone to disable the setting. Once you do, they sound a lot better, and you can even tweak them further with the Wear app's nine-band equalizer.。业内人士推荐手游作为进阶阅读
"It's a beautiful time for women, you see now more than ever women in their 30s and 40s who are just so happy being single, and feeling like they don't need a man - like our song!" she laughed.。关于这个话题，超级工厂提供了深入分析