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.
位于伊拉克南部米桑省的哈法亚油田，现代化厂区整洁美观，400多口油水井、5个高压注水泵站、3个油气中心处理厂和1个天然气处理厂昼夜不停生产作业。人们很难想象，15年前这里还是一片荒无人烟的偏远油区。
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过去，国内生产这些线材都是用来出口的，但在 2009 年开始国内的需求开始暴涨。
儘管享受到了免於恐懼的自由，但日子過得並不容易，最拮据的時候，是蝸居在一處地下房內，靠著超市裡的冷凍食物度日。
For example, a 500km route might be broken down into ~100 such shortcuts. If each A* shortcut calculation explores 100-1000 detailed road segments, the total detailed segments visited by A* might be around 10,000-50,000. Compare this to the 1,000,000+ segments the old A* might have needed for the entire route!