Japan's Self Defense Forces have sent out helicopters to patrol along the country's east coastline to monitor a possible tsunami and evaluate the damage.

日本自卫队已经派遣直升机巡逻东部海岸地区，监测有可能发生的海啸并评估它带来的破坏。

youdao

Q: Last week, Japan Maritime Self Defense Force sent out vessels on convoy missions to the Gulf of Aden and seas off the Somali coast, how do you comment?

问：上周，日本海上自卫队派遣护卫舰赴索马里亚丁湾海域进行护航，请问中方对此有何评论？

youdao

Irene's verbal ability showed in her self-defense. The jury vetoed the charge against her.

艾琳的口头表达能力在她的自我辩护中展现出来，陪审团否决了对她的指控。

youdao

The government and military have promised weapons will only be used in self defense.

VOA: standard.2009.04.13

That's self defense.

那是自卫。

耶鲁公开课 - 公正课程节选

You can also use it in self-defense.

你也可以用它自卫。

哈佛公开课 - 幸福课课程节选

Although self defense is a legitimate legal doctrine, it varies by jurisdiction and is quite limited.

FORBES: Caution: Active Response to Cyber Attacks Has High Risk

Those who rejected non-violence either abandoned the faith or died in solo attempts at self defense.

FORBES: Back From Lebanon, An Attempt To Explain The Israelis' Attitude Toward The Palestinians

He also gives Ali two certificates saying he is authorized to use the rifles for self defense.

NPR: U.S. Marines on the Job in Anbar Province