I finally hoisted him up with a block and tackle.我最终用滑轮组把他拉了上去。You're bound to mistime a tackle every so often.有时候你肯定会错估铲球的时机。Poverty and unemployment are frustratingly hard to tackle.贫穷和失业是难以解决的问题，这常常让人泄气。...
Some seed varieties germinate fast, so check every day or so.有一些种子发芽快，所以差不多每天得察看一下。Heat and moisture will germinate the seeds.温度和水分会使种子发芽.Some seed varieties germinate fast, so check every day or so...有一些种子发芽快，所以差不多每天得察看...
Scientists test out theories by experiment.科学家用实验来检验理论.Theories abound, but scientists are at a loss to explain this infanticidal behavior.理论比比皆是, 但科学家都处于一种茫然不知所措解释这infanticidal行为.In general, his theories are based on th...