A
a couple (of) 一对，一对夫妇
a little 一点;少量;稍微
a good time to do sth 做某事的好时间
a pair of black socks 一双黑袜子
a picture of my family 一张我的全家福
a quarter past three 三点一刻
a set of keys 一串钥匙
a symbol of good luck 好运的象征
according to 依据
across from 在......对面
advise sb. to do sth 建议某人做某事
after all 毕竟
all in all 总的来说
all kinds of 各种各样的
all the time 频繁;反复
all year round 全年
another three hours 另外三个小时
around the world 世界各地
arrive in/at 到达
art festival 艺术节
as far as I know 据我所知
as for 至于
as long as 只要;既然
as soon as 一......就
ask for 请求
at birth 出生时
at least 至少
at the beginning of 在……开始
at the same time 同时
avoid doing 避免做某事
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