Department spokesman Ben McCarty says the truck fleet logs over four million miles and year hauling their special cargo.

能源部发言人本·麦卡蒂表示，卡车车队行驶400多万英里，运输着这种特殊货物。

Simon has scuba-dived for 16 years and has logged over 3,000 dives, but this is diving at its most basic.

西蒙有 16 年的水肺潜水经验和超过 3000 次的潜水经历，而这却是最回归原始的一次潜水。

When the notches were cut, he rolled the log over.

当缺口被切割时，他将原木翻了过来。