恶意软件已经演化形成跨国公司和价值数百万美元的产业，它们与在安全厂商工作的专家一样熟练和精通安全问题。
Malware has evolved into a multinational and multimillion dollar industry that's just as skilled and versed in security matters, as experts working in the security industry.
笔者认为应注意三个方面，即精通外贸英语、通晓外贸业务知识和熟练应用“7c”写作原则。
I believe that the following three aspects are very important: to master foreign trade English, to familiarity with foreign trade practice and to grasp the "7c" writing principles.
根据英孚教育的报告，中国人在认为自身英语能力足够熟练精通之前仍需加把劲。
China still has a way to go before it can consider itself adequately proficient in English, ' according to English First BV.
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