But there have been several previous attacks on whale trainers at SeaWorld parks.

但此前，各地的海洋世界已发生过多起鲸鱼袭击驯鲸员的事件。

youdao

Eilat has been the scene of previous attacks, leading Israel to approve the construction of a security fence along two sections of the border 18 months ago.

埃拉特此前遭受过袭击，导致以色列在18个月前同意在边境的两处地方修建安全墙。

youdao

Russian Artillery base controls the area and counters any breakout actions launched. The base is well defended and has been successful in repelling previous attacks.

这里有一个俄军炮兵阵地驻守，该阵地情况良好，且击退了美军几次进攻。

youdao

Defense Intelligence Agency Director General Michael Maples noted Taliban attacks in 2008 were up by 55 percent over the previous year.

VOA: standard.2009.03.11

Overall,it says insurgent attacks fell to 12 per day from 22 per day during the previous three months, while Iraqi civilian casualties fell 35 per cent.

VOA: standard.2009.03.31

At least 18 suspected militants were killed in the previous two attacks.

VOA: standard.2009.09.14

And Conservative home affairs spokeswoman Ann Widdecombe renewed previous attacks over falling police numbers.

BBC: News Online

Previous attacks involved the leaving of explosives in public places like markets or on trains.

BBC: Mumbai attacks show tactic change

Fermanagh businessman Sean Quinn, who lost control of the company, has condemned previous attacks.

BBC: Derrylin windfarm