tb

/ˌtiːˈbiː/ (bre, ipa) · [tˈibˈi] /ˌtiːˈbiː/ (ame, ipa)

tb — noun

1. the short written form of tuberculosis, an infectious disease that usually affec

1.名詞B1
釋義

the short written form of tuberculosis, an infectious disease that usually affects the lungs

例句

The clinic offered free TB tests after the shelter reported two cases.

pattern: TB test / TB cases

Ayesha wore a mask while visiting her uncle in the TB ward.

同義詞
  • tuberculosis

    the full medical name, used in careful writing and speech

  • consumption

    an old-fashioned historical name, not used in modern medical English

文法句型

have TB

test for TB

TB ward

用法筆記

Usually written as TB in hospital notes, news reports, and public-health information. In normal speech and careful writing, the full word tuberculosis is often clearer.

常見錯誤

❌She caught a TB.
✅She caught TB.
💡The disease name is normally used without a or an.
❌TB means any chest infection.
✅TB means tuberculosis.
💡TB refers to one specific infectious disease.

2. the short written form of terabyte, a unit used for measuring a very large amoun

2.名詞B1
釋義

the short written form of terabyte, a unit used for measuring a very large amount of digital storage

例句

Yumi backed up the wedding videos on a 2 TB external drive.

pattern: [number] TB external drive

The game needs nearly 1 TB of space after all updates.

pattern: TB of space

同義詞
  • terabyte

    the full unit name, used when you want to be more explicit

文法句型

[number] TB

TB of storage

[number]-TB + noun

用法筆記

Usually written after a number. In technical writing, the capital B matters because it shows that the unit is based on bytes, not bits.

常見錯誤

❌My phone has TB storage.
✅My phone has 1 TB of storage.
💡The abbreviation normally needs a number before it.
❌The file is 800 TB' when you mean gigabytes.
✅The file is 800 GB.
💡TB is much larger than GB.

tb — abbreviation

tb — symbol