either
英['aiðə]美['i:ðər]
作形容詞
1.（兩者之中）任一的
2.（兩者之中）各一的，每一的
作代詞
（兩者之中）任何一個；各方，每一方
作副詞
也，而且
作連詞
或者，要么
詞義辨析
also，too，as well，either，likewise
這些詞均含“也”之意。
also比too正式一些，語氣較重，只用於肯定句，一般緊靠動詞。
too語氣較輕，多用於口語，用於肯定句與肯定問法的疑問句，通常位於句末。
as well一般不用否定句，通常放在句末，強調時可放在句中。
either用於否定句與否定問法的疑問句，放在句末，之前不加逗號。
likewise是書面語用詞。
either ... or ...要么...要么...
either of+the+可數名詞複數 任何一個
反義詞 neither
參考例句
The bonding agent may be incorporated in the suspension either through the use of thermosensitive fibers or as an adhesive of some type.
可以使用熱敏性纖維，也可以加入多種粘合劑進行纖維的粘合。Binary digit either the digit 0 or the digit 1,as used in binary notation.
二進制數字（0或1，用於二進制記數法）。This was not a desirable choice either, since they would have difficulty finding work during the economic downturn.
這也並非一個好的選擇,在經濟蕭條期這些工人很難找到工作。Every Sunday,they disport themselves either in the parks or in the mountains.
每周日他們或去公園或去爬山。The large cane-chair was placed in readiness on the foredeck, the two bearers waiting on either side.
那隻大藤椅已經放在雲飛船頭，兩個精壯的腳夫站在旁邊。
英英解釋
副詞解釋：
after a negative statement used as an intensive meaning something like likewise' or also'he isn't stupid, but he isn't exactly a genius either I don't know either if you don't order dessert I won't either
