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Grammar Points
未...，也未...— double negative with '未'HSK 5
Use 未 to negate verbs in formal or written Chinese. When you add 也未 (or 也无) before another verb, it expresses that the second action also did not happen, creating a coordinated negative pair.
"亚盛集团：公司未取得相关采矿资质，也未开展矿产相关业务。"
"公司未取得相关采矿资质，也未推进与矿产相关的工作，不存在应披露而未披露的重大事项或重要信息。"
为/为了...— purpose clauseHSK 3
为 or 为了 introduces the purpose of an action, answering the question “why”. The main clause describes what one does to fulfill that purpose.
"为满足公司业务发展需要，深入推进国际化战略，打造国际化资本运作平台。"
"为了让一部分人先看到未来，36氪 APP 推送和解读前沿、有料的科技创投资讯。"
...并...— coordinating action with 并HSK 4
The conjunction 并 links verbs or clauses to show that two actions happen together or sequentially, often used in formal writing to add information smoothly.
"公司拟发行境外上市外资股（H 股）股票并在香港联交所主板挂牌上市。"
"36氪 APP 让一部分人先看到未来，并推送和解读前沿、有料的科技创投资讯。"
正在...— progressive actionHSK 3
正在 is placed before a verb to emphasize that an action is currently in progress. It often appears in spoken and written Chinese to describe ongoing activities.
"微信正在研发自有模型，巨头 AI 入口争夺战升级。"
"微信正在研发自有模型，用户体验或将颠覆。"
经...论证— after/throughHSK 5
经 followed by a noun phrase and a verb like 论证 indicates that something happens after going through a process such as research, discussion, or approval. It’s common in formal/business contexts.
"经充分研究论证，公司拟发行境外上市外资股（H 股）股票并在香港联交所主板挂牌上市。"
"61氪获悉，为满足公司业务发展需要，深入推进国际化战略，打造国际化资本运作平台。"
Key Vocabulary
的deHSK1
(used after a noun, verb or adjective to form a nominal expression, as in 皮革的[pi2 ge2 de5] "one made of leather" or 跑堂兒的|跑堂儿的[pao3 tang2 r5 de5] "a waiter (literally, one who runs back and forth in a restaurant)" or 新的[xin1 de5] "new one")