51 at first 首先,开始的时候
52 at large 未被捕获的,大多数
53 at last 终于,最终
54 at least 至少
55 at length 最终,详细地
56 at most 最多
57 at no time 从不,决不
58 at one time 曾经,从前曾
59 at the cost of 以……为代价
60 at the least 至少
61 at times 有时,间或
62 at…speed 以……的速度
63 attend on 照顾,侍候
64 attribute … to 把……归于
65 back up 后退,支持
66 base on 基于
67 be able to 能够,胜任
68 be about to 正打算
69 be accustomed to 习惯于
70 be associated with 与…有关,与…有关系
71 be aware of 意识到
72 be capable of 有能力干
73 be caught 遇到,陷入
74 be committed to 被交给,答应承担义务
75 be confined to 限制在,局限于
76 be confined/be restricted 受…限制
77 be dedicated to 奉献,献给
78 be devoted to 被用于,贡献给
79 be directed to 指向,针对
80 be drawn to 被┄所吸引
81 be due to 由于,因此
82 be exposed to 暴露在┄下,处在┄的作用之下
83 be fond of 喜爱
84 be full of 充满他
85 be habitual to(him) 对(他来说)习以为常
86 be in order 合适,恰当
87 be involved in 参与,参加
88 be involved with 与…有关连
89 be left to 由┄来决定,由┄来想办法
90 be limited to 限制在┄,限定在┄
91 be linked to/with something 与…连接
92 be proud of 为...而骄傲
93 be referred to 被提及,被提交
94 be related to 与……有关
95 be sick of 厌恶┄,讨厌┄
96 be subject to 经受,遭受
97 be suitable for 适合于
98 be sure of 对┄的肯定
99 be thrown in 额外赠送
100 be tied by/with 被…捆绑
。