A peaceful demonstration had been hijacked by anarchists intent on causing trouble.

和平示威已遭到蓄制造事端的无政府主义者的操控。文中 hijacked 是 hijack 的过去分词形式(相当于形容词) ，修 social media trends，是：被操纵的热搜，就是我们平时说的“花钱买热搜”。讲个笑话，如果你有个朋友叫 Jack ，在飞机偶然见到他之后， 打招要随便说 Hi。

For that, I would argue that actually the hallmark that I study, epigenetic modifications is probably the most predictive as of right now.

我认为就目前而言，实际上我研究表观遗传修的标志能是最预测的。

Rather, they cover isolated forms of the genes, which have been identified, snipped from the genome and chemically modified to make them analysable in a laboratory.

恰恰相反，专利涉及的是这些基因的分离基因，已被测定的分离基因是从基因组中剪切出来经化学方法修后用于实验室实验分析的一类基因。