一个句子结构分析,例句：Even at its widest it is only about 100 meters w

Even at its widest在句中做状语放在句首,表示'尽管,即使"
让步状语从句表示：虽然,尽管,即使等概念,由although,though（尽管,即使）,however（无论怎样）,whatever（无论什么）,whoever（无论谁）,whomever（无论谁）,whichever（无论哪个）,whenever（无论何时）,wherever（无论哪里）,whether（是否）,no matter (who,what,where,when,etc) （无论……）,even if（即使）,even though（即使）等词引导.如：We won’t be discouraged even if(=even though) we fail ten times.我们就是失败十次也不泄气.