Amb = to walk, to go
* ambulance
n. 救护车
the ambulance service
救护车服务
* ambassador
n. 大使
the US ambassador to Spain
美国驻西班牙大使

* embassy
n. 大使馆全体外交官员; 大使馆
the American Embassy in China
中国的美国大使馆
* ambiguous
a. 不明确的; 模棱两可的
The language in the Minister's statement is highly ambiguous.
部长的声明措词十分模棱两可。
* ambiguity
n. 模棱两可, 不明确
There was an element of ambiguity in the president's reply.
总统的回答有点模棱两可。