1
the testicles
泛指男性生殖腺时常用复数形式 testicles。
The testicles produce sperm and testosterone.
睾丸产生精子和睾酮。
睾丸
先理解核心含义，再看它在真实句子里的用法。
睾丸
testis; male reproductive gland that produces sperm and male sex hormones
The testicles produce sperm and testosterone.
睾丸产生精子和睾酮。
A testis: the male sex and endocrine gland, found in most types of animals, that produces sperm and male sex hormones, including the steroid testosterone.
产生精子和分泌雄激素的两个男性生殖腺之一
one of the two male reproductive glands that produce spermatozoa and secrete androgens
Either half of the structure that contains the testes: one side of the scrotum and its contents, considered as one object (one half of the ballsack, including its ball).
The doctor explained that each testicle produces sperm and hormones.
医生解释说，每个睾丸都会产生精子和激素。
During the biology class, we examined how testicles develop in mammals.
生物课上，我们观察了哺乳动物的睾丸是如何发育的。
He felt a sharp pain in his left testicle after the fall.
摔倒后他感到左侧睾丸一阵剧痛。
泛指男性生殖腺时常用复数形式 testicles。
The testicles produce sperm and testosterone.
睾丸产生精子和睾酮。
表示“一侧睾丸”时，用 one of + 所有格 + testicles。
He was hit in one of his testicles.
他的一侧睾丸被击中。
testicle 可直接作定语修饰名词，如 testicle cancer（睾丸癌）。
He went to the doctor because of testicle pain.
他因睾丸疼痛去看医生。
Not this
He has two testicle.
Use this
He has two testicles.
testicle 是可数名词，在 two 等大于一的数词后必须用复数形式 testicles。中文没有名词复数变化，所以学习者容易漏掉 -s。
Not this
He was diagnosed with testicle cancer.
Use this
He was diagnosed with testicular cancer.
testicle 是名词；表示“睾丸的”这类修饰关系（尤其是疾病名称）时，英语常用形容词 testicular，如 testicular cancer，而不说 testicle cancer。这是医学英语中约定俗成的搭配。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
肿大的睾丸
He went to the doctor because of a swollen testicle.
他因睾丸肿大而去看医生。
睾丸疼痛
Sudden testicle pain can be a sign of a serious condition.
突发的睾丸疼痛可能是严重疾病的征兆。
未降入阴囊的睾丸
An undescended testicle is usually treated in early childhood.
未降入阴囊的睾丸通常在儿童早期接受治疗。
左侧睾丸
The pain was in his left testicle.
疼痛在他的左侧睾丸。
一个睾丸
He was born with only one testicle.
他天生只有一个睾丸。
Use testicle naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 testicle 拆成 test + icle，像“小考试”：睾丸就像两个小考生，负责造精子和分泌雄激素。
语域：formal 常见场景：医学、生物学、性教育 testicle 是较正式的中性解剖学术语，多用于医学、生物学或性教育等需要准确、客观表达的场景；日常口语中较少使用这个词。
这些词都以 -icle 结尾，且该结尾均读作 /ɪkəl/。其中 article 与 particle 押韵，其余互不押韵；它们都不与 testicle 押韵（testicle 的重读音为 /ˈtɛstɪkəl/，其他词的重读元音各异）。注意：拼写相近并不代表读音相同。
Dictionary facts from ECDICT, WIKTIONARY.