The rainbow formed a beautiful arc in the sky.

虹在天上成美丽的弧形。

Pengxian copper deposit and the Masongling Formation acting as host formation are products of island arc volcanism in convergent plate boundary.

证据表明，马松岭组及其所赋存的铜矿床均为会聚性板块边界古火山岛弧的产物。

Circular solutions for Area, Arc, Circumference, Column and Cones.

圆的解决方案区，弧，周长，列和视锥。

※Each man is the architect of his own fate. 命运掌握在自己手中。
※Every man is the architect of his own fortune. 每个人都是他自己命运的建诛师。
※A good archer is not known by his arrows but his aim. 神箭手因其射中靶子而非因其箭而闻名。
※I am ready to die for my Lord, that in my blood the Church may obtain liberty and peace. Thomas Becket, Archbishop of Canterbury.  我准备为我的主而死，在我的血液里流淌着与生俱来的信念，教堂可以获取自由与和平。坎特伯雷大主教 柏克特 T.  

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