101. all right 令人满意的;可以
102. as well 同样,也,还
103. as well as 除...外(也),即...又
104. aside from 除...外(还有)
105. at a loss 茫然,不知所措
106. at a time 一次,每次
107. at all 丝毫(不),一点也不
108. at all costs 不惜一切代价
109. at all events 不管怎样,无论如何
110. at all times 随时,总是
111. at any rate 无论如何,至少
112. at best 充其量,至多
113. at first 最初,起先
114. at first sight 乍一看,初看起来
115. at hand 在手边,在附近
116. at heart 内心里,本质上
117. at home 在家,在国内
118. at intervals 不时,每隔...
119. at large 大多数,未被捕获的
120. at least 至少
121. at last 终于
122. at length 最终,终于
123. at most 至多,不超过
124. at no time 从不,决不
125. by accident 偶然
126. at one time 曾经,一度;同时
127. at present 目前,现在
128. at one's disposal 任...处理
129. at the cost of 以...为代价
130. at the mercy of 任凭...摆布
131. at the moment 此刻,目前
132. at this rate 照此速度
133. at times 有时,间或
134. back and forth 来回地,反复地
135. back of 在...后面
136. before long 不久以后
137. beside point 离题的,不相干的
138. beyond question 毫无疑问
139. by air 通过航空途径
140. by all means 尽一切办法,务必
141. by and by 不久,迟早
142. by chance 偶然,碰巧
143. by far 最,...得多
144. by hand 用手,用体力
145. by itself 自动地,独自地
146. by means of 用,依靠
147. by mistake 错误地
148. by no means 决不,并没有
149. by oneself 单独地,独自地
150. by reason of 由于
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