soon

Compared meaning: happening soon, in a short time (adverb).

比较义项：不久，很快（副词）。

• soon 本词

  The everyday, all-purpose word for "in a short time"; neutral register, used in both speech and writing, with no formal or distancing tone.

  日常通用词，表示“不久后”；语气中性，口语和书面都可以使用，没有正式或疏远的感觉。

  I'll be there soon, so please don't worry about it.

  我很快就会到，所以请不要担心。

• shortly

  More formal than soon; typical in announcements, schedules, and professional settings, often paired with a specific upcoming event.

  比 soon 更正式，常用于通知、日程安排和职业场合，常与即将发生的具体事件搭配使用。

  The doctor will see you shortly, so please take a seat.

  医生很快就会见你，所以请先坐下。

• presently

  Formal and somewhat literary; common in official or written statements. Note: in American English it can also mean "currently", a different sense not compared here.

  语气正式，略带书面色彩，常见于正式声明或书面表达。注意：presently 在美式英语中也可表示“目前，现在”，此处不涉及该义项。

  The results will presently be made available to all applicants online.

  结果不久后将在网上向所有申请人公布。

Soon, shortly, and presently all mean 'in a short time', with rising formality. Soon is everyday and neutral. Shortly is more formal, typical in announcements and schedules. Presently is most formal and literary. Note: in American English, presently can also mean 'currently', not compared here.

这三个词都表示“不久后”，但正式程度依次递增：soon 最常用、语气中性；shortly 更正式，常见于通知或日程安排；presently 最正式，带书面／文学色彩。这里不比较 presently 表示“目前，现在”的另一义项。