order of magnitude speculate
on in response to a streak of
conform to in retrospect as far as...is
concerned lay out let alone
pave the way for Statistics differ as to the ______ but clearly indicate that heavy-duty trucks cause far more wear and tear to roads than passenger automobiles.
尽管统计数据在数量级上还有差异，但都清晰地表明重型卡车比客车对路面造成的磨损更为严重。