VOA慢速英语:Security Concerns Raised on Obama’s Asian Trip

短语讲解：

1. Mr. Obama arrived in Japan Wednesday at a time when a number of allies are concerned about China’s military expansion.

at a time 依次， 逐一
例句：Do one thing at a time.
一次只专注于一件事情。
concern about 使（自己）关心…
例句：There is a lot of concern about political transition.
人们对它的权力交接交接有很多担忧。

2. At his meetings in Tokyo, President Obama urged Japan to speed up talks for the Trans-Pacific Partnership.

speed up （使）加速; 开快车; 加紧; 增速
例句：If you want to hang on you better speed up.
如果你想跟上，你也得加速。

3. The negotiations were slowed down over Japanese taxes on agricultural products.

slow down （使）慢下来; （使）生产缓慢
例句：It could slow down our recovery.
它会减缓我们复苏的速度。

4. Earlier he gave a warning to the North against carrying out another nuclear test.

carry out 执行; 进行; 完成
例句：They should also carry out some fundamental reforms.
这些政府也应该执行一些基础性的改革。

5. Territorial disputes with China and U.S. military cooperation will again come up for discussion.    

come up 发生; 上来
例句：A new problem had come up.
发生了一个新的问题。