And as Teotihuacan grew stronger, it attracted additional migrant work forces.

随着特奥蒂华坎逐渐发展壮大，它也吸引着迁移而来的劳动力。

Shanahan said that any additional forces would focus on protecting U.S. troops who are already in the region.

沙纳罕称任何增兵都将保护那些已在该地区的美军。

As many as 250 additional forces are on the way for a total of 300.

多达 250 名额外部队正在路上，总共有 300 名部队。

When this stagnation  pressure acts on the bottom of a concrete slab, it creates an additional uplift force.

当这种停滞压力作用在混凝土板的底部时，会产生额外的升力。

Is it then surprising, that when the sole ambition of woman centres in beauty, and interest gives vanity additional force, perpetual rivalships should ensue?

那么令人惊讶的是，当女人的唯一野心集中在美貌上，而利益给虚荣心提供了额外的力量时，就应该接踵而至的是无休止的竞争吗？

Officials of the Defense Department said Mr. Obama’s executive order was necessary to speed the deployments and would allow the president to send additional forces as needed.

国防部官员表示，奥巴马的行政命令对于加快部署是必要的，并将允许总统根据需要派遣更多部队。