There are limits to creating a new bike lane as transportation official Pietro Calabrese explains.

正如交通官员皮埃特罗·卡拉布雷斯解释的那样，新建自行车道是有限制的。

Peters Square A boy chases pigeons in column - ringed Piazza San Pietro, designed by Gian Lorenzo Bernini.

一位男孩在追赶一群鸽子在圆柱状物镶环轮状的圣彼得鲁广场,设计者是伊恩?洛伦佐?伯尔尼.

The first reliable system for measuring the transparency of sea water was developed by astronomer and Jesuit priest Pietro Angelo Secchi.

天文学家和耶稣会牧师Pietro Angelo Secchi发明了第一个可靠的能测量海水透明的装置。

To ask that question after the passage of two centuries, says Pietro Nivola of the Brookings Institution, is to pose an impossible thought experiment.

都已经两世纪了，现在才来问这样的问题，根本就是摆出了不可能完成的想象实验，布鲁金斯研究所的彼得罗·尼沃拉（Pietro Nivola）如此表示。