考纲知识预览

1． 徒然；白费力气 2． 不管多大代价，无论如何 3． 立刻，马上 4． 彻底毁灭 5． 终止；消灭 6． 无论如何；至少 7． 偶然发现或遇见 8． 推迟，拖延

高频短语

in vain

at all costs

straight away

wipe out

stop sth.in its tracks

at any rate

come across

put off