当年VC圈对于微信生态创业者最通用的比喻是“后花园种菜”：在微信这个巨头建立的封闭生态里创业，就像是“在地主家的后花园里开垦一块小菜地”，地不是你的，水不是你的，甚至连围墙都不是你的。如果腾讯明天决定自己做这个功能，你的护城河在哪里？
An Ars Technica colleague recently bought a new M4 MacBook Air. I have essentially nothing bad to say about this hardware, except to point out that even in our current memory shortage apocalypse, Apple is still charging higher-than-market-rates for RAM and SSD upgrades. Still, most people buying this laptop will have a perfectly nice time with it.
第二百七十四条 船舶在合理时间内未从被获知最后消息的地点抵达目的地，除合同另有约定外，满六十日后仍没有获知其消息的，为船舶失踪。船舶失踪视为实际全损。，这一点在体育直播中也有详细论述
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10:17, 3 марта 2026Бывший СССР
A modern jet has an array of sensors to help it contend with bad weather. Magnetometers track the plane’s direction; gyroscopes help calculate its pitch and roll; accelerometers detect its changes in speed; Doppler radar measures the distance to the storm and how quickly it’s moving. In the early nineties, Larry Cornman developed a program that could sift through some of that sensor data to measure the air’s turbulence in real time. Atmospheric scientists call this the “eddy dissipation rate,” or E.D.R. It’s usually scored between 0 and 1—calm to severe.，更多细节参见体育直播