1
be diagnosed with TB
TB 是 tuberculosis（结核病）的常用缩写，正式文体中通常大写。
He was diagnosed with TB after a chest X-ray.
他在胸部X光检查后被诊断出患有肺结核。
铽
先理解核心含义，再看它在真实句子里的用法。
铽
a metallic element of the rare-earth group, used in lasers; occurs in some rare-earth minerals
He was diagnosed with TB after a chest X-ray.
他在胸部X光检查后被诊断出患有肺结核。
此义指化学元素铽（符号 Tb）。
稀土金属元素；用于激光器；存在于磷灰石、独居石、铈钇矿和钇铌矿中
a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
通过吸入或摄入结核杆菌传播的感染,表现为发热和小病灶(通常在肺部,但在急性阶段可在身体其他部位)
infection transmitted by inhalation or ingestion of tubercle bacilli and manifested in fever and small lesions (usually in the lungs but in various other parts of the body in acute stages)
等于1000千兆位或10^12(1,000,000,000,000)位的信息单位
a unit of information equal to 1000 gigabits or 10^12 (1,000,000,000,000) bits
The portable drive I bought has 2 tb of space, which is enough for my video projects.
我买的便携式硬盘有2TB空间，足够存我的视频项目。
Our backup system stores about 40 tbs of log files every month, so we need more servers.
我们的备份系统每月存储大约40TB的日志文件，所以我们需要更多服务器。
Before downloading the dataset, check that your hard drive has at least 10 tb free.
下载数据集前，请检查你的硬盘至少有10TB可用空间。
TB 是 tuberculosis（结核病）的常用缩写，正式文体中通常大写。
He was diagnosed with TB after a chest X-ray.
他在胸部X光检查后被诊断出患有肺结核。
表示死于某种疾病时常用 die of；医学语境中 TB 指结核病。
Before antibiotics, many people died of TB.
在抗生素出现之前，许多人死于肺结核。
在计算领域，TB 是 terabyte（太字节）的缩写。
This drive has 4 TB of storage.
这个硬盘有 4 TB 的存储空间。
TB 用作单位放在名词前时，本身不加复数词尾 -s。
He bought a 2 TB external hard drive.
他买了一个 2 TB 的外置硬盘。
Not this
He has a tb and needs to see a doctor.
Use this
He has tb and needs to see a doctor.
TB 作“肺结核”讲时是不可数疾病名，前面不加 a/an；不能说 a tb。
Not this
He was infected by tb last year.
Use this
He was infected with tb last year.
表达“感染某种疾病”时，infect 与 with 搭配，不用 by；by 引出的是施动者，不是疾病。
Not this
The server stores 100 tb data.
Use this
The server stores 100 tb of data.
tb 作“太字节”时是计量单位，表示“多少 tb 的……”要用 of 连接后面的名词，不能说 100 tb data。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
肺结核
Pulmonary TB can damage the lungs if left untreated.
肺结核如果不治疗，可能会损害肺部。
结核病治疗
He completed his TB treatment on time.
他按时完成了结核病治疗。
耐药结核病
Drug-resistant TB is harder to cure than ordinary TB.
耐药结核病比普通结核病更难治愈。
结核病检查
The nurse gave me a TB test before I started work at the hospital.
护士在我开始在医院工作前给我做了结核病检查。
太字节（万亿字节）存储容量
This external hard drive has two TB of storage.
这个移动硬盘的存储容量为两太字节（万亿字节）。
我得了结核病忧郁症。这句歌词出自美国乡村音乐人吉米·罗杰斯1931年的名曲《T.B. Blues》，唱出了当时结核病患者的无奈与痛苦。
Jimmie Rodgers's 1931 'T.B. Blues' is a landmark country blues song about living with TB.
吉米·罗杰斯1931年的《T.B. Blues》是一首里程碑式的乡村布鲁斯歌曲，讲述带着结核病生活的人生。
《结核病床单》。这是范·莫里森1967年同名歌曲的标题，歌曲描写一位女子死于结核病的场景，题目中的“床单”指病房里的床单。
Van Morrison's 1967 song 'T.B. Sheets' is a blues dirge about witnessing a woman die of TB.
范·莫里森1967年的歌曲《T.B. Sheets》是一首布鲁斯挽歌，描写目睹一名女子死于结核病的经历。
Use TB naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Tb（大写 T 小写 b）是元素铽；TB（两个都大写）是肺结核/太字节。记住：大小写不同，意思不同。
语域：mixed 常见场景：医学语境：结核病、计算机语境：太字节 tb 是缩写，通常写作 TB，读作 /ˌtiːˈbiː/。在医学语境多指结核病，在计算机语境多指太字节；本身没有明显的正式或口语之分，主要由使用领域决定。正式文本中通常先写全称再使用缩写。
“tb” is pronounced as two letters: /ˈtiˌbi/, so it rhymes with words ending in the /iː/ sound, such as bee, key, tea, see, tree, free. Be careful with lookalikes like “tab” (/tæb/) and “tub” (/tʌb/), which share the “t_b” spelling but sound completely different.
Dictionary facts from ECDICT, WIKTIONARY.