Explaining these requires new ways of producing oxidising power which do nothing to alter the balance of other chemicals in the atmosphere.
解释这些现象需要新的方法产生氧化剂,这种氧化剂却无法改变大气层中其他化学物质的平衡。
Using acronyms that the audience doesn't know or explaining concepts that the audience already gets are two good ways to be a bad speaker.
要么说些听众搞不明白的术语,要么解释听众早已熟知的概念,这是差劲演讲的两个极端。
“Why” needs to beexplained in two ways: “Because of A…” (referring to a past/present reason) and“In order to do B…” (explaining future consequences).
应该从两个方面来解释“为什么”:一方面“因为A...” (指的是过去/现在的原因),另一方面“为了做到B...”
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