Every day, the two of them would join a crew — pickaxes and other heavy tools in hand — and clear trails of creeping brush, as well as remove heavy rocks and fallen trees.
每天， 他们两人像其他组员一样——带着镐和其它沉重的工具——清理道路上倒伏的灌木，搬除沉重的石块和倒下的树木。
The Center report showed the United States trails other countries in older groups, too.
调查报告显示，美国年龄较大人群的网络使用率也落后于其他国家。
Mouse acceleration, pointer trails, FilterKeys and even StickyKeys can cause slight delays on some systems, as well as other custom hotkey software, so its worth disabling these if all else fails.
鼠标加速、指标轨迹、过滤键、甚至粘滞键在某些系统里会引起轻微延迟，其他的用户热键软件也是如此，所以如果别的招数都不管用，就取消这些应用。
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