构建Second Life客户机并不那么简单，目前还不能说是一帆风顺的，不过曾经一直封闭的软件包选择开源也是很正常的。
Building the Second Life client is not exactly easy or painless right now, but that is pretty normal when a package that has historically been closed gets opened up.
本来应该一帆风顺的部署过程最后变成一场救火行动，经过反复测试之后才让生产环境恢复到正常状态。
So what should have been an eventless deployment ended up being an all-hands-on-deck fire drill where a lot of trial and error finally hacked the production environment into a usable state.
分娩后测量脐带附着点到胎盘边缘的距离，将结果分为正常附着、边缘性附着和帆状附着。
The distance from the placental edge to the insertion of the umbilical cord was measured after delivery, and the results were used to classify cord insertion as normal, marginal, or velamentous.
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