usually

Compared meaning: in most cases, generally (adverb).

比较义项：通常、大多数情况下（副词）。

• usually 本词

  The most common, neutral word for habitual frequency; natural in any register, casual or formal, without needing a following contrast.

  表示习惯性频率时最常用、最中性的词；无论口语还是书面语都很自然，不需要带转折。

  Yeah, I usually just grab a sandwich for lunch.

  嗯，我通常只是随便买个三明治当午饭。

• normally

  Very close to usually, but often implies 'under normal circumstances' and is common in spoken English when leading into an exception.

  和 usually 意思很接近，但常带有“按正常情况”的意味，口语中常用来引出后面的例外情况。

  Normally I'd say yes, but I already have plans tonight.

  按正常情况我会答应，但我今晚已经有安排了。

• ordinarily

  More formal or literary in tone than usually and normally; rarely used in casual speech, and often paired with a following contrast.

  语气比 usually 和 normally 更正式、更书面化；口语中很少使用，也常与后面的转折搭配使用。

  Ordinarily, the committee would meet on Tuesday, but this week's session was moved.

  按常规，委员会本应在周二开会，但本周的会议改期了。

Usually, normally, and ordinarily all mean in most cases. Usually is the most common, neutral word. Normally is similar but often suggests 'under normal circumstances', common before a contrast. Ordinarily is more formal and literary, rare in casual speech, and often leads into a contrast.

三者都表示“通常、大多数情况下”，但语气和使用场合略有不同：usually 最常用、最中性，口语和书面语皆可；normally 语气相近，常带有“按正常情况本应如此”的意味，尤其在口语中用来引出转折；ordinarily 语气更正式、书面化，日常口语中较少使用，也常用于引出转折。