What part of speech is it?(這是什么詞類？)

I'm only interested in the first and third groups (the word and the part of speech).(我只對第一和第三組感興趣(單詞和詞性)。)

Modern Chinese is a closed part of speech, in which there are less monosyllabic ones, while conversion reaches about 40%.(現代漢語副詞是一個封閉的詞類，單音節副詞相對更少，但兼類卻達到40%左右。)

Silence is one of the most profound ways to connect with your inner voice, with nature. Silence is the best part of speech.(沉默是連系你內心聲音的最具影響的方式，沉默是演講中最好的部分。)

Interjection in English is a small part of speech and its importance has been often ignored.(英語感嘆詞是英語中的一個小詞類，其重要性往往被忽視。)

In compounds, the rightmost morpheme determines the part of speech of the word.(在化合物，最右邊的語素確定講話的一部分的話。)

Many older people lose the ability to remember proper nouns but then never progress to losing any other part of speech.(許多老人們記不清楚正確的詞語，但從不會漏掉語句中的其它成分。)

The Part of Speech(POS) of polyphones is very important for pronunciation disambiguation.(多音字的詞性對于讀音消歧有著特殊重要的意義。)

The quantifier in Chinese is one part of speech to express the quantity unit.(現代漢語量詞是用來表示數量單位的一種詞類。)

There are universalities on both the concept of number and the specific number, and there is a part of speech named as numeral in every language.(數的概念和具體的數都具有普遍性，而每一種語言都具有自己的數詞系統。)