在句子层次上，原文和译文对照如下：

S1: The frog pool was square---fifty feet wide and seventy feet long and four feet deep.

蛙塘是长方形的——50英尺宽，70英尺长，4英尺深。

S2： Lush soft grass grew about its edge, and a little ditch brought the water from the river to it and from it little ditches went out to the orchards.

柔草葱翠，长满蛙塘四周；一条小沟把河水引进塘里；蛙塘又岔出一些小沟，向果园而去。

S3：There are frogs there all right，thousands of them.

塘里确有青蛙，成千上万的青蛙。

S4：Their voices beat the night, they boomed and barked and croaked and rattled.

娃声给黑夜打着节拍，有呜呜声，有哇哇声，有呱呱声，有嘎嘎声。

S5：They sang to the stars, to the waning moon, to the waving grasses. 

青娃们对着星星、对着下弦月、对着随风摇摆的绿草歌唱。

S6：They bellowed love songs and challenges.

它们起劲儿地吼着，既有情歌，又有战歌。

S7: The men crept through the darkness toward the pool.

马克一伙在黑暗中摸向池塘。

S8：The captain carried a nearly-filled pitcher of whisky and every man had his own glass.

上尉提着一只大水罐，里面几乎装满了威士忌，各人带着自己的杯子。

S9：The captain had found them flashlights that worked.

上尉还为他们找了几只好使的手电筒。

S10：Hughie and Jones carried gunny sacks.

休伊和琼斯背着麻袋。

S11： As they drew quietly near, the frogs heard them coming.

当他们悄悄走近塘边的时候，青蛙听到有人来了。

S12: The night had been roaring with frog song and then suddenly it was silent.

整个夜晚青蛙歌声如雷，现在突然哑然无声。

S13： Mack and the boys and the captain sat down on the ground to have one last short one and to map their campaign.

马克和小伙子们以及上尉席地而坐，来了个最后的少来点儿，然后制订作战计划。

S14： And the plan was bold.

那计划够大胆的。