Because of this, we kept looking back, wondering if we were leaving a trail of oil and petrol behind us.
因此，我们不时地掉过头，怀疑车后是否留下了机油和汽油的痕迹。
新概念英语第三册
Lesson 39 Nothing to worry about
📚 句中词汇解析
从本句中提取的重要词汇
conj. 因为;
💡 cause, cuse 表原因,目的;司法程序,诉讼
"He was arrested because of his political affiliation."
他因所属政党的关系而被捕。
近义：since, whereas, for, forasmuchas
vt. 跟踪，追踪;拖曳：让…拖或飘扬在后面;拖沓而行;跟在…后面;
vi. （在比赛等中）输;（尤指跟在他人后面）疲惫地走;（在比赛或其他竞赛中）落后;蔓生;
n. 足迹;臭迹;小径;一缕;
💡 trail(draw)→拖；拉；追踪；尾随；踪迹；小径
"The wagon left a trail of dust."
马车后扬起了一缕烟尘。
近义：heel, hound, shadow, sleuth, spoor, trace
prep. （表示位置）在…的后面;支持;（表示顺序）在身后;（表示比较）落后于;
adv. 在后面;向后;在后面较远处;（落）在后面;
n. 〈口〉屁股;
💡 be构成一些介词+hind藏在后面→在…后面
"The crowd had to stand behind barriers."
人群只好站在障碍物后面。
近义：back, posterior, rear, rearward, lagging, late
反义：quick, rapid, accelerated
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
"Water allotments to farmers were cut back in the drought."
在干旱时期配给农民的水量减少。
近义：second, support, endorse, illustrate, document, backtrack
反义：impel, inch, save, loop, sheer, slew