“We will have four or five people starting out once a week around dusk walking the neighborhood with a graffiti cleanup kit,” said Michael O’Connor, the head of the Brooklyn Action Corps in Portland.

我们将开始雇佣四至五人，随身携带涂鸦清理工具，每周一次黄昏时在邻近地区走动。

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In this paper, the pitch Angle changing of charged particles of the magnetotail under the action of the dawn-dusk electric field is studied by evaluating about 900 trajectories by computer.

本文从粒子的轨道理论人手，通过对近900条粒子轨道的具体计算，研究了磁尾粒子在晨昏电场作用下的投掷角变化。

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DUSK falls over Baghdad and Kabul, and the Predators take their places in the skies overhead, ready for action.

夜幕降临在巴格达与喀布尔，而“掠夺者”却到天空中到处抢占地盘，准备开始作战。

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