His face had withered . in the strenuousness of his concentration he treadled fitfully on the floor 他想努力把心思集中起来，就在地板上胡乱地来回走着。
5.
The technologies , which include treadle pumps and drip irrigation systems , enable farmers to produce vegetable crops for consumption and sale 这项技术，包括踏板抽水和滴流灌溉系统，使得农户可以用于蔬菜灌溉，达到自行消费和出售的目的。
6.
In the early 1980s , thousands of farmers in bangladesh began using treadle pumps to irrigate small plots of homestead gardens instead of lugging heavy buckets of water 在1980年代初期，孟加拉国有几千农民开始用踩踏水泵灌溉自家菜园内的小块作物，而不用提一桶桶沉重的水。
7.
Sewing clothes for her family on the old singer treadle machine , cooking meals and baking bread , planting and tending a vegetable garden , milking the goats and scrubbing soiled clothes on a washboard （用老式的“胜家”缝纫机为一家人缝缝补补；要做饭、烤面包；要照料菜园；要挤羊奶；还要在洗衣板上搓洗脏衣服。 ）
