1. Summertime, oh summertime, pattern of life indelible, the fade proof lake, the woods unshatterable, the pasture with the sweet fern and the juniper forever and ever, summer without end; this was the background, and the life along the shore was the design, the cottages with their innocent and tranquil design, their tiny docks with the flagpole and the American flag floating against the white clouds in the blue sky, the little paths over the roots of the trees leading from camp to camp and the paths leading back to the outhouses and the can of lime for sprinkling, and at the souvenir counters at the store the miniature birch-bark canoes and the post cards that showed things looking a little better than they looked.
我一个劲儿地回忆着这往昔的一切。那些岁月，那些夏日，对于我是无限的珍贵，值得永远珍藏心底。那是充满欢乐、宁静和美好的时光。八月初的到达本身就是桩了不得的事儿。农场的马车在火车站刚停下，你就闻到了空气中厚重的松树味儿；你第一次瞥见了笑容满面的庄稼人。车上的行李箱是那么重要，是少不得的。父亲在所有这些事儿上有着绝对的权威。马车在你身底下颠颠晃晃十几英里的感受，是多么令人激动！在最后一座长长的山脊上，你一眼望见了离别十一个月的湖，望见了你梦牵魂绕的那泓湖水。
2. The objective of this study is to investigate if ethylene can induce floating type of leaves in this fern.
本研究目的在探讨乙烯气体是否可以诱导田字草浮水的形成。