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as is a chemical element
作为名词，'as' 指化学元素砷。
as is a chemical element with the symbol As and atomic number 33.
砷是一种化学元素，符号为As，原子序数为33。
阿斯；古罗马磅
先理解核心含义，再看它在真实句子里的用法。
阿斯；古罗马磅
A libra; an ancient Roman pound used as a unit of weight.
as is a chemical element with the symbol As and atomic number 33.
砷是一种化学元素，符号为As，原子序数为33。
古罗马重量单位
A libra, a Roman pound.
一种非常有毒的金属元素,有三种同素异形体；砷及其化合物用于除草剂和杀虫剂及各种合金；存在于毒砂、雌黄和雄黄中
a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
美国在萨摩亚岛东部的领土
a United States territory on the eastern part of the island of Samoa
The chemical symbol for arsenic is As.
砷的化学符号是 As。
The sample contained As, so the lab handled it carefully.
样品中含有砷，因此实验室谨慎处理。
AS is the postal abbreviation for American Samoa.
AS 是美属萨摩亚的邮政缩写。
作为名词，'as' 指化学元素砷。
as is a chemical element with the symbol As and atomic number 33.
砷是一种化学元素，符号为As，原子序数为33。
作为名词，'as' 指美属萨摩亚。
as is a territory of the United States in the Pacific Ocean.
美属萨摩亚是美国在太平洋的一个领地。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
砷中毒
Chronic as poisoning can cause skin lesions and cancer.
慢性砷中毒可导致皮肤病变和癌症。
砷污染
The groundwater as contamination affected thousands of residents.
地下水砷污染影响了数千居民。
砷浓度
The as concentration in the soil exceeded safety limits.
土壤中的砷浓度超过了安全限值。
砷暴露
Long-term as exposure increases the risk of lung cancer.
长期砷暴露增加肺癌风险。
砷去除
Effective as removal methods are essential for safe drinking water.
有效的砷去除方法对安全饮用水至关重要。
Use as naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
As既是砷的化学符号，也是美属萨摩亚的缩写，记住这两个含义。
常见场景：地理/政治、化学/毒理学 名词含义有两个：指美属萨摩亚时多用于地理或政治语境；指砷时多用于化学或毒理学语境。
All listed words end with the sound /æs/, matching the target word 'as'. Note that words like 'was' (/wʌz/) or 'has' (/hæz/) have different pronunciations despite similar spelling.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.