rickety 英 [ˈrɪkəti] 美 [ˈrɪkəti] adj. 摇晃的；虚弱的；患佝偻病的
考点1: adj.不稳的: lacking stability or firmness
■e.g. The rickety coalition may break at any moment.脆弱的联盟随时都可能破裂。
■同: insecure, precarious, shaky, unsound, unsteady, weak
■反: firm, sound, stable, sturdy 稳定的，稳固的
pliable 英 [ˈplaɪəbl] 美 [ˈplaɪəbl] adj. 柔韧的；柔软的；圆滑的；易曲折的
考点1: adj.易弯曲的，柔软的: supple enough to bend freely or repeatedly without breaking
■e.g. pliable optical fiber柔软的光纤
■同: adaptable, ductile, flexible, limber, plastic, supple
■反: inflexible, rigid, stiff不易弯曲的;unbending 难弯曲的
考点2: adj.易受影响的，温顺的: easily influenced, persuaded, or swayed
■e.g. He took advantage of the pliable mind of youth. 他利用了年轻人容易受他人教唆的特点。
■同: compliant, docile, obedient, pliant, tractable, subdued
■反: contumacious, insubordinate, intractable, obstreperous, recalcitrant, refractory, unruly 难控制的
acknowledge 英 [əkˈnɒlɪdʒ] 美 [əkˈnɑːlɪdʒ] vt. 承认；答谢；报偿；告知已收到
考点1: vt.承认: to admit the existence, reality, or truth of
■e.g. He refused to acknowledge the fact that her daughter has gone.他拒绝承认女儿己经死去的事实。
■同: admit, agree, allow, concede, confess, grant, own
■反: deny否认
■派: acknowledgement n.承认
sly 英 [slaɪ] 美 [slaɪ] adj. 狡猾的；淘气的；诡密的
考点1: adj.狡猾的: clever or cunning, especially in the practice of deceit.
■e.g. The movie pairs a sly, dissembling ex-con with an upstanding, straight-arrow cop.电影把一个狡猾、善于骗人的出狱犯和正直、坦率的警察搭配在了一起。
■同: beguiling, cagey, crafty, cunning, designing, devious, foxy, guileful, ■反: artless, guileless, ingenuous, innocent, undesigning 天真纯朴的，无伪装的
考点2: adj.隐秘的，偷偷的: given to acting in secret and to concealing one's intentions
■e.g. took a sly look at the letter on the table 偷偷地看了一眼桌上的信
■同: furtive, shady, shifty, slippery, sneaking, stealthy
■反: aboveboard 光明正大的
absent 英 [ˈæbsənt] 美 [ˈæbsənt] adj. 缺席的；缺少的；心不在焉的；茫然的 vt. 使缺席
考点1: adj.未出现的，缺乏的: not present, attending or existing
■e.g. The city's usual stir of activity was conspicuously absent due to the report of an escaped lion from the zoo.一则动物园狮子逃跑的消息让这座城市缺少往日的繁华。
■同: away, lacking, missing, nonexistent, wanting
■反: existent, present 存在的，出现的
考点2: adj.不专心的，走神的: lost in thought
■e.g. seemed absent because he nodded but didn't say anything他只点了点头但没说话，看起来像是走神了
■同: abstracted, distracted, preoccupied
■反: alert, vigilant, watchful, wary 警惕的;attentive, heedful, mindful 专注的
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