271.at the expense of在损害……情况下，以……为牺牲
272.expose……to……使暴露于……，使……受(危险，风险)
273.be exposed to……面临……，受到……
274.beyond expression (= in a manner that cannot be expressed)无法形容，说不出的
275.give expression to表达，表现
find expression in表现
276.to……extent在……程度上
277.in the extreme (=extremely)极其
278.look sb. in the eye正视，打量(某人)
279.close (shut) one‘s eyes to不理会，视而不见
280.in one‘s mind’s eye在心目中，在想象中
281.in the twinkling of an eye一眨眼，转眼间
282.keep an eye on (=keep a watch on)照看，监视
283.in the eyes of in one‘s eyes (= in the judgment of)在某人看来，在某人眼里
284.on the face of it (=judging by what one can see)表面看来
