in situ

IPA/ˌɪn ˈsɪtʃ.uː/
IPA/ˌɪn ˈsɪtʃ.uː/

in situ — 形容詞

1. remaining in its original position or location, rather than being moved, removed

1.形容詞C1
釋義

原位;就地

留在原處,未經移動或移除

remaining in its original position or location, rather than being moved, removed, or taken away for examination elsewhere. This sense is especially common in scientific and medical contexts where keeping something untouched in its natural setting matters for accurate study.

例句

The archaeologist examined the pottery fragments in situ before any artifacts were lifted from the trench.

考古學家在挖掘出的陶器碎片被移走之前,先在其原位上進行了檢查。

examined in situ — studied without removing

Surgeons decided to treat the tumour in situ rather than removing the entire organ.

外科醫師決定在原位治療腫瘤,而不切除整個器官。

treat [condition] in situ — medical usage

常見搭配
  • in situ treatment
  • in situ analysis
  • in situ preservation
  • in situ hybridization
  • in situ examination
同義詞
  • in place

    less formal, everyday alternative to 'in situ'

  • undisturbed

    emphasises that nothing has been touched or altered, not just location

反義詞
  • ex situ

    the direct Latin opposite, meaning removed from the original location; used in the same formal registers

  • removed

    everyday opposite, not specific to academic register

文法句型

remain in situ

leave something in situ

examine something in situ

用法筆記

In academic and medical writing, 'in situ' is an invariable Latin phrase that always stays the same form — it never changes to agree with gender, number, or tense. It can function both as an adjective (placed after the noun it modifies: 'an in situ examination') and as an adverb ('the fossils were photographed in situ').

常見錯誤

The archaeologists worked in-situ' (with hyphen).
The archaeologists worked in situ.
'in situ' is a Latin phrase written as two separate words; the hyphenated form 'in-situ' is non-standard in formal English.

2. in the correct or expected position within the body or a structure, especially a

2.形容詞C1
釋義

在原位

處於正確或預期的位置

in the correct or expected position within the body or a structure, especially after a medical procedure or when describing anatomy, indicating that something has not shifted, fallen out, or been displaced.

例句

The follow-up X-ray confirmed that the hip replacement was still in situ and functioning well.

後續的X光檢查確認髖關節置換物仍在原位,功能正常。

still in situ — confirming correct position after procedure

Dr. Okafor checked that all surgical clips remained in situ before closing the incision.

Okafor 醫師在縫合切口前,檢查了所有手術夾是否仍在正確位置上。

常見搭配
  • remain in situ
  • still in situ
  • left in situ
  • stay in situ
同義詞
反義詞
  • displaced

    the opposite of being in the correct position; common in medical notes

文法句型

still in situ

remain in situ

be in situ

用法筆記

Distinguish from sense 1: sense 1 emphasises that something has NOT BEEN MOVED from its original natural location (an archaeological or geological context). Sense 2 emphasises that something is in the CORRECT or EXPECTED position (often a medical implant, device, or anatomical structure). Sense 2 often appears after a verb like 'remain', 'stay', or 'be' to describe the outcome of a procedure.

常見錯誤

The screws are in-situ with no loosening.
The screws are in situ with no loosening.
Write 'in situ' as two separate words; no hyphen in standard English usage.

常見搭配

常用片語

  • remain in situ
  • leave in situ
  • study in situ
  • examine in situ
  • photograph in situ