Familial means “of the family” or “typical of a family”. A familial duty is something the family expects.

Familial means的意思是 "of the family"「家族的」 or或 "typical of a family"「像一個家族典型的樣子」。A familial duty家族責任 is是 something the family expects家族期待你做的事。

Doctors use it a lot: a familial illness is one that tends to show up in relatives, not just in one person — it runs in the family.

Doctors use it a lot醫生很常用這個字: a familial illness家族性疾病 is one that tends to show up in relatives是那種容易出現在親戚身上的病, not just in one person而不只是一個人身上 — it runs in the family也就是會在家族裡流傳。

It is a formal, slightly technical adjective. Everyday English would often just say family: family life, family history. You reach for familial when you want the adjective to sound precise, especially in medicine.

It它 is是 a formal, slightly technical adjective一個正式、稍微專業的形容詞。Everyday English日常英文 would often just say通常就直接說 family family：family life家庭生活、family history家族史。When想讓形容詞聽起來精確時 you want the adjective to sound precise, especially in medicine尤其是在醫學上, you reach for你就會用 familial familial。

Though actually, learners mix this up with familiar, which looks like a cousin and is one: both go back to Latin familia, the household. But they took different paths. Familial is about family. Familiar means “well known to you”, or friendly in a way that may be too close.

Though actually不過其實, learners mix this up with學習者常常把這個字跟 familiar familiar 搞混, which looks like a cousin and is one它看起來像表親，而且真的是表親: both go back to兩個字都源自 Latin familia拉丁文familia, the household也就是「家戶」。But但 they took different paths它們後來走上了不同的路。Familial familial is about跟...有關 family家庭。Familiar familiar means的意思是 "well known to you"「你很熟悉的」, or friendly in a way that may be too close或是熟到有點太過親近的那種友善。