gradient and Laplacian operator

I was presented with three classic French sweet delicacies: the first, a pair of doughy chocolate eclairs which were filled with a rich and fluffy chocolate mousse.

我们享用了三款法式甜点。第一道是一对填满了香醇蓬松巧克力慕斯的泡芙。

But certainly I admired how so many of them stayed trim while enjoying coq au vin, baguettes, andouillettes, eclairs and fondue while Americans struggled with their weight while gorging on diet soda and Lean Cuisines.

但是，我很钦佩他们。享受着鸡尾酒、法国面包、手指饼干、芝士火锅等美食，他们中许多人依然保持苗条身材。而美国人虽努力减肥，却暴饮无糖饮料、暴食精益美食。

Lettie, the chocolate eclairs are done.

蕾蒂贝壳蛋糕烤好了哦

Blocks of ice cream in every flavor you could think of, apple pies, treacle tarts, chocolate eclairs and jam doughnuts, trifle, strawberries, Jell-O, rice pudding.

你所能想到的各种口味的大块大块的雪糕、苹果馅饼、蜜糖果饼巧克力棒糕、果酱油炸饼、草莓、咖胆、米饭布丁……应有尽有。