每2个小时活动一次钻具。
Replacement might be a different matter though, as the string does not need to move.
尽管替换可能是一件不同的事情，字符串不需要移动。
Why not move? Like to have a cigarette? As you wish when you pull out the string.
为何不动，你要叼根烟？等你拉出细绳任由你。
The string remains bold until you move the cursor.
直到您移动游标之前，字串都会以粗体显示。
Under each blue sky, all has a string to move towards the sea the footprint.
在每片淡蓝的天空下，都有着一串走向大海的脚印。
Under each blue sky, all has a string to move towards the sea the footprint.
在每片淡蓝的天空下，都有着一串走向大海的脚印。
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