1·The Navy plans to buy 12 ballistic-missile submarines to replace the 14 current Ohio-class, or Trident, boats that are nearing the end of their service lives.
海军计划购买12艘弹道导弹潜艇以更换正在服役的14艘俄亥俄级（三叉戟）潜艇，这些潜艇都快过服役年限了。
2·Guests were checking in at the Trident, with about 100 of the 550 rooms booked out.
在三叉戟酒店客人只有通过检查才能进入，酒店550个房间中的100个已经被登记入住。
3·Others represented fishermen, with a net to snare opponents and a trident to spear them.
另一些人则代表渔民，配备着一张网来诱捕对方，以及一把用来戳刺对手的三叉戟。
4·The day he was shot, Duggan hired a people carrier from a taxi firm. Officers from the Met's Operation Trident, which investigates gun crime within the African-Caribbean community, followed it.
当天，达根从出租车公司叫了一辆小车，“三叉戟”行动(调查加勒比黑人的持枪犯罪)的警员对他实施跟踪。
5·Officers from operation Trident — the Metropolitan Police unit that deals with gun crime in London's black communities — stopped the cab Duggan was travelling in during a pre-planned operation.
伦敦警察队负责调查黑人社区涉枪犯罪的三叉戟行动组当时拦截了马克·达根乘坐的出租车。