两年前，美国抱怨中国船只干扰美国侦查舰无畏号在海南以南的南中国海的侦查活动。
Two years ago America complained when Chinese vessels harassed a surveillance ship, the USNS Impeccable, in the south China Sea south of the Chinese island-province of Hainan.
伴随着新的驱逐舰、潜艇、以及舰载机，北京于去年开始进行了它的第一次航母海试，这艘航母是十多年前从乌克兰购买的，已整修一新。
Along with new destroyers, submarines and naval aircraft, Beijing last year began sea trials on its first aircraft carrier, a refurbished model purchased from Ukraine more than a decade ago.
该舰入列后，将主要担负巡逻警戒、护渔护航、反潜作战、对海作战等使命任务。
It will mainly conduct such missions as patrol, guard, escort, anti-submarine warfare and maritime combat after its commissioning.
几年前，在距北卡罗来纳州海特拉角不远处，来自麻省理工学院的科学家们前来搜寻内战时期沉没的铁甲舰。
Some years ago, off North Carolina's Cape Hatteras, scientists from the Massachusetts Institute of Technology took part in a search for the sunken Civil War ironclad Monitor.
俄罗斯军机本周两天近距离飞越波罗的海的一艘美国驱逐舰并进行模拟攻击飞行，美国对此表示关注。
The U. S. expressed concern over Russian military aircraft flying apparent simulated attack passes near a U. S. destroyer in the Baltic Sea over the course of two days this week.
俄罗斯军机本周两天近距离飞越波罗的海的一艘美国驱逐舰并进行模拟攻击飞行，美国对此表示关注。
The U. S. expressed concern over Russian military aircraft flying apparent simulated attack passes near a U. S. destroyer in the Baltic Sea over the course of two days this week.
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