非常保守地估計(jì), 據(jù)德國(guó)的早期統(tǒng)計(jì), 有28, 000人被炸死.On a very conservative estimate, according to the early German statistics, 28, 000 persons were killed.保守地修剪你的果樹, 除非枝條已經(jīng)壞死或者損傷.Prune your tree sparingly, unless the wood is dead or damaged...