A mastiff is a very large, heavy, strong dog, the kind people have long used to guard a house, a yard, or livestock. The body is thick, the head is broad, and a grown mastiff can look almost as big as a small person.

A mastiff isMastiff是 a very large, heavy, strong dog一種體型非常大、笨重又強壯的狗，the kind people have long used to guard a house, a yard, or livestock長久以來被人用來看守房子、院子或牲畜的那種。The body is thick牠的身體厚實，the head is broad頭部寬大，and a grown mastiff can look almost as big as a small person成年的mastiff看起來幾乎跟一個小孩子一樣大。

Though actually, 'mastiff' is both a loose everyday word for this type of huge guardian dog and a name for certain breeds (the English Mastiff is the famous one).

Though actually不過其實，'mastiff' is both a loose everyday word for this type of huge guardian dog「mastiff」既是日常對這種巨型看門犬的鬆散說法，and a name for certain breeds也是某些特定品種的名稱（the English Mastiff is the famous oneEnglish Mastiff就是最有名的一種）。

Many mastiffs today are family dogs, calm with people they know, even if strangers still feel the size. The name does not come from massive, even though the dog is massive — that is a lucky look-alike, not the real story.

Many mastiffs today are family dogs現在很多mastiff都是家庭犬，calm with people they know對認識的人很溫和，even if strangers still feel the size就算陌生人還是能感覺到牠的體型。The name does not come from massive這個名字不是來自massive，even though the dog is massive就算這種狗確實massive——that is a lucky look-alike, not the real story那只是碰巧長得像，不是真正的來源。