名詞 expletive:

1. profane or obscene expression usually of surprise or anger
   同義詞：curse, curse word, oath, swearing, swearword, cuss
2. a word or phrase conveying no independent meaning but added to fill out a sentence or metrical line

1. A word that stands in place of and anticipates a following word or phrase. In the sentence There are many books on the table, the word there functions as an expletive.
   語助詞一個單詞代替或提前指代某一后面的詞或短語。在句子有許多書在桌子上中，單詞there的功能就是一個語助詞
2. `Damn!' is an expletive.
   ｀該死!＇是咒罵語。
3. He uttered several vigorous expletives when he dropped the iron on his foot.
   他的熨斗掉下砸在腳上，他隨口罵了幾聲。

ex.ple.tive

n.（名詞）
An exclamation or oath, especially one that is profane, vulgar, or obscene.
詛咒語：喊叫或誓言，尤指不敬的、粗俗的或淫穢的

A word or phrase that does not contribute any meaning but is added only to fill out a sentence or a metrical line.
多余的詞語：加上后僅湊足一個句子或詩的一行而不增添任何意義的一個詞語或短語
A word that stands in place of and anticipates a following word or phrase. In the sentenceThere are many books on the table, the word there functions as an expletive.
語助詞：一個單詞代替或提前指代某一后面的詞或短語。在句子有許多書在桌子上 中，單詞 there 的功能就是一個語助詞
adj.（形容詞）
Added or inserted in order to fill out something, such as a sentence or a metrical line.
附加的：附加的或插入的，為了充實(shí)諸如一個句子或詩句等東西

來源：
From Late Latin explôtovus [serving to fill out]
源自 后期拉丁語 explôtovus [用于填充]
from Latin explôtus [past participle of] explôre [to fill out]
源自 拉丁語 explôtus [] explôre的過去分詞 [充實(shí)]
ex- [ex-]
ex- [前綴，表.…之外.]
plôre [to fill] * see pel…-
plôre [填充] *參見 pel…-