Hold one picture and everything else follows: a very heavy machine with a huge roller on the front, moving over a road at walking speed. It never swerves and it never hurries. Whatever is under it does not get argued with — it gets flat. That is the whole word. Put the machine on a person and you get someone nobody can stop; put it on a meeting and you get a plan that is through before the questions start; put it on a match and you get a score with only one side in it.
可以想成一台很重的機器，前面一個大滾筒，用走路的速度壓過路面。它不轉彎，也不趕時間。壓在它下面的東西，不會有人跟你商量——就是變平。這個字全部的用法都從這台機器出發：把它放到人身上，就是一個擋不住的人；放到會議上，就是問題還沒問完案子就過了；放到比賽上，就是比分完全一面倒。
From the word’s history
steam + roller: a roller driven by steam. The engines changed, the name stayed.
steam（蒸汽）＋ roller（滾輪），也就是靠蒸汽推動的滾筒機器。後來動力換了，名字留下來了。
packet evidence: Wiktionary etymology for steamroller (kaikki:3f6f69a190036ae4), 'From steam + roller'
登入就可以看每一支怎麼連回核心畫面。