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1、annual
一年一次的；每年的
the annual conference of Britain's trade union movement.
英国工会运动的年会
In its annual report, UNICEF says at least 40,000 children die every day.
在其年度报告中，联合国儿童基金会称每天至少有4万名儿童死亡。
年刊;年报;年鉴
I looked for Wyman's picture in my high-school annual.
我在中学年刊中寻找怀曼的照片。
He tried the various almanacs, annuals and gazettes which were held in the library.
他试着在图书馆里找过各种历书、年鉴和报纸。
一年生植物
The simplest way to deal with these hardy annuals is to sow them where they are to flower.
处理这些一年生耐寒植物最简单的办法是将他们种在能开花的地方。
2、fragile
脆弱的;不确定的
The fragile economies of several southern African nations could be irreparably damaged.
一些南非国家的脆弱经济可能会被彻底破坏，无法挽回。
The Prime Minister's fragile government was on the brink of collapse.
首相领导的脆弱的政府处在瓦解边缘。
易碎的;易坏的
He leaned back in his fragile chair.
他仰靠在那把摇摇晃晃的椅子上。
虚弱的;无力的
He felt irritated and strangely fragile, as if he were recovering from a severe bout of flu.
他感到恼火和莫名其妙的虚弱，仿佛经历了一场重感冒，正在康复。
