Today, as I left my house, the front door slammed shut behind me, causing an entire roof-length of snow to slide over the edge and land directly on my head.
今天我出门的时候关门太用力，把整个房檐上的积雪都震的滑了下来，雪都砸在了我头上。
The steel cage guides the rollers over their entire length, thus permitting relatively high-speed operation.
钢保持架在其整个长度范围内引导滚子，因此允许相对高速的运行。
The steel cage guides the rollers over their entire length, thus permitting relatively high-speed operation.
钢保持架在其整个长度范围内引导滚子，因此允许相对高速的运行。
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