If someone is boastful, they talk too proudly about themselves — their money, their grades, their cleverness — as if they need you to be impressed. A little pride can be fine; boastful means they keep pushing it on other people.

If someone is boastful如果一個人boastful, they talk too proudly about themselves他們談自己談得太得意了 — their money, their grades, their cleverness他們的錢、成績、聰明才智 — as if they need you to be impressed好像非要你佩服不可A little pride can be fine有點驕傲沒關係; boastful means they keep pushing it on other peopleboastful是說他們一直把這種驕傲推給別人看

It is a criticising word. You would not smile and call a friend boastful unless you thought they had gone too far.

It is a criticising word這是個帶批評意味的字You would not smile and call a friend boastful你不會笑笑地叫朋友boastful unless you thought they had gone too far除非你覺得他真的太過分了

It can describe a person or the way they talk: a boastful story, a boastful smile. It is a normal word, not slang, and a little more formal than show-off.

It can describe a person or the way they talk它可以形容一個人，也可以形容講話的方式: a boastful story, a boastful smilea boastful story吹噓的故事、a boastful smile得意洋洋的笑容It is a normal word, not slang這是個普通的字，不是俚語, and a little more formal than show-off比show-off愛現稍微正式一點

Though actually, people sometimes boast without meaning to sound unkind; boastful is how it lands on the listener when there is too much of it.

Though actually不過其實, people sometimes boast without meaning to sound unkind有些人吹噓的時候並不是故意要讓人不舒服; boastful is how it lands on the listener when there is too much of itboastful講的是當吹噓過頭時，聽的人感受到的樣子