朝鲜炮击韩朝有争议水域

短语讲解：

1. A defense ministry spokesman in Seoul, who did not want to be named, says South Korea fired three warning shots into the Yellow Sea on Wednesday afternoon, an hour after North Korean shelling was heard close to the two countries' disputed sea boundary.

close to离…近
例句：His house is close to mine.
他的房子靠近我家。

2. South Korean authorities say the North fired another round in the evening and the South's troops responded with three more shots.

respond with以…作为回答
例句：He was ready to forget all his grievances and respond with warmth and simplicity. 
他甘愿把心底的委屈统统抛在脑后，报之以一腔热血，一片诚心了。

3. South Korea says it can not confirm that any shells fell into its waters, south of the line.

fall into掉进, 陷入
例句：Don't let it fall into the hands of the enemy.
不要让它落入敌人手中。

4. South Korea’s military then fired back from Yeonpyeong 35 minutes after it broadcast the warning.

fire back 开火反击
例句：When the enemy starts hooting, you may fire back.
敌人如果开火，你们就反击。