51.in no case 在任何情况下都不(放句首倒装句)4 L3 I* [5 B2 J5 v! I
52.be cautious of 谨防! J$ }; s' ]+ ^" I( R2 P+ ^$ P
53.center one‘s attention on (=focus one’s attention on) 把某人的注意力集中在……上 + a/ g$ c7 }+ E) r a 54.be certain of (=be sure of) 有把握,一定。" }, Y) @4 y0 O. q2 G( _1 E9 Z
55.for certain of (=for sure) 肯定地,有把握地8 T* l: |" J/ }+ ?1 }( U
56.attach(to) (=to fix, fasten; join) 缚,系,结0 [0 |) G# } |4 J
57. make an attempt at doing sth. (to do sth.)试图做…… 6 D6 f! D3 h6 j& } 58.attend to (=give one‘s attention, care and thought) 注意,照顾;attend on (upon) (=wait upon, serve, look after) 侍候,照料 ) u& c8 S3 x5 C' T0 b' u% K 59.attribute to/ toward ……对……的态度、看法: a3 M2 O8 _+ p* {: P: E7 V; O' K Q
60.attribute……to…… (=to believe sth. to be the result of……) 把……归因于……,认为……是……的结果