“按照推测”常见的英文表达有 “according to speculation”、“based on speculation” 或 “by speculation” 。以下为你分别举例说明：
according to speculation：
例句：According to speculation, the company may merge with another large firm next year. （按照推测，这家公司明年可能会与另一家大公司合并。）
based on speculation：
例句：The conclusion is based on speculation rather than solid evidence. （这个结论是基于推测，而非确凿的证据。）
by speculation：
例句：Some investors made decisions by speculation, which led to significant losses. （一些投资者根据推测做出决策，结果导致了重大损失 。）