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1·In tough times, nations circle the wagons.

艰难时期，国家这辆马车掉头了。

2·As the coming of the great storm, all the soldiers are starting to circle the wagons.

巨大暴风雨来临了，战士们迅速严正以待。

3·As the church has felt more threatened by the secular culture, there's been an effort to circle the wagons around the family and create a sense of safety.

在教会越来越感受到世俗文化的压力时，他们致力于使家庭圆满，并营造一种安全感。

4·Wagon trains — groups of wagons — rode in four lines across the land when they passed through dangerous country. If attacked, the wagons could quickly form a circle for defense.

马车队(即一群马车)，当他们经过危险区时，他们排成四排向前行进，如果遭受到攻击时，这些马车就会很快地形成一个保护圈进行抵抗。

5·If the passenger transport capacity of the hub is restricted by the capacity of section or key point, circle line of hub may be built for the return of wagons.

如枢纽客运能力受区间和咽喉能力限制时，可修建枢纽环线，让货车迂迥。