Actinium series

[化] 錒系(指89~103號元素)

?? 詞語組成解析

actinium
n. 錒\\n[化] 錒Ac
series ['s?riz]
n. 系列，連續;串聯;（廣播或電視上題材或角色相同的）系列節目;級數;
ser(join)+ies(名詞后綴)→連續；系列；叢書

??? 情景例句

but I think I can be of some help to you.
但我覺得我可以對你略有幫助。
Careful!
小心！
So he had gone to the stores and had obtained a fixture that fitted both the tap on the supply line and the end of the air-line.
所以他就到倉庫找到一個既適合供應管也適合供氣管的接頭。
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?? 更多 A 開頭的單詞

amy ['eimi]
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