const cur = val; // 简化变量名，代表当前价格
"The nebula appears to have distinct regions that capture different phases of its evolution — an outer shell of gas that was blown off first and consists mostly of hydrogen, and an inner cloud with more structure that contains a mix of different gases," NASA's blog post reads. The dark line that runs vertically through the nebula, giving it the cranial appearance, could be the result of "an outburst or outflow from the central star, which typically occurs as twin jets burst out in opposite directions." Both Webb's Near-Infrared Camera (NIRCam) and its Mid-Infrared Instrument (MIRI) were used to document the nebula.
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两家的老人也同步了作息时间表，尽可能贴合流程来，有一些波动很正常，比如出门玩了，吃饭晚一些，午睡晚一些，都是允许的。但步骤不能缺，下午尽可能的不让她睡太多，防止晚上睡不着。
usage, so it is something I usually want to examine when joining a distressed