His interest here is in the creation of a tight, and highly disciplined cadre of young warriors who will protect the city much as watchdogs protect their own home.

他的兴趣,明显是创造一个紧密，且高度自制的,年轻战士骨架,他们将保卫城市,就像看门狗顾家一样。

耶鲁公开课 - 政治哲学导论课程节选

But Russia itself has no worse loss for the United States right now could find ways to keep us so tight down in the Middle East for a decade that we could do nothing else.

俄罗斯现在还没有对美利益造成太大损害,有办法,让我们紧紧围绕在中东问题上,在十年内我们只有束手无策。

普林斯顿公开课 - 国际座谈会课程节选

Core electrons are all those electrons held in really tight with the nucleus in the inner shells, whereas the valence electrons are only those electrons that are in the outer-most shell, or at your highest value of n of the principal quantum number.

芯电子是那些,在内壳层被原子核束缚得非常紧的电子，而价电子只包括,最外层的电子，或者说主量子数，n，的值最大的那些电子。

麻省理工公开课 - 化学原理课程节选