Boastfulness is the noun: the habit or quality of talking too proudly about yourself. We use it when we want to name the thing itself, not how someone is speaking in this one moment.

boastfulnessboastfulness is是 the noun這個名詞: the habit or quality就是 of talking too proudly about yourself太驕傲地談自己的習慣或特質。 we我們 use it用它 when當 we want to name the thing itself我們想指稱這件事本身時、 not而不是 how someone is speaking in this one moment某人這一刻怎麼說話。

A person full of boastfulness keeps pointing to their own wins and leaves little room for anyone else. It is a little formal.

a person一個人 full of boastfulness充滿boastfulness的 keeps pointing to一直指向 their own wins自己的成就、 and leaves little room而給其他人 for anyone else留下很少空間。 it它 is a little formal有點正式。

A friend is more likely to say He's always showing off than His boastfulness is a problem. Teachers and writers like the noun because they can talk about the quality, the same way they talk about kindness or laziness.

a friend一個朋友 is more likely to say更可能會說 He's always showing off「他老是在炫耀」 than而不是 His boastfulness is a problem「他的boastfulness是個問題」。 teachers and writers老師和作家 like the noun喜歡用這個名詞 because因為 they can talk about他們可以談論 the quality這種特質、 the same way就像 they talk about他們談論 kindness or laziness善良或懶惰一樣。

Though actually, a little pride in good work is not the same as boastfulness — boastfulness is the extra, the part that pushes other people down.

though actually不過其實、 a little pride in good work對做好工作的一點驕傲 is not the same as跟boastfulness不一樣 boastfulness -- boastfulnessboastfulness is the extra是多出來的那部分、 the part that pushes other people down把別人往下踩的那部分。