VOA慢速英语:Thailand Releases Drawing of Bombing Suspect

短语讲解：

1. Thai officials have issued an arrest warrant for a foreign man wanted in the bombing that killed at least 22 people Monday at a shrine in Bangkok.

at least 至少
例句：For that day at least he lost heart.
至少这一天他是垂头丧气的。

2. But, investigators have not yet been able to identify his motives or nationality.

be able to 能够
例句：He will be able to take up his normal routine shortly.
他不久就能处理日常事务。

3. Asaad was killed in a public square in Palmyra in front of many people.

in front of 面前; 在…前面; 当着…的面
例句：A monument was erected in front of the town hall.
一座纪念碑在市政厅前建起。