tractor-trailer – n. large truck with a trailer attached to the back

disruption – n. an interruption in normal progress

blur – v. to make unclear or confused

theoretically – adv. related to something that is possible, but not yet known to be true

sustainable – adj. able to be maintained at a certain rate or level

rational – adj. based on facts or reason and not emotions or feelings
 2/4   首页 上一页 1 2 3 4 下一页 尾页