ground。 當電子從雲底向地面湧動時，帶電通道便形成了。
element［'elim？nt］n。 元素；要素；［常 pl。］基本原理
例句 1。 Various proposals were put forth to settle the elements into groups based on similar chemical and physical properties。 各種提議被提出，目的是將元素基於相同的化學和物理性質安排到各組。
2。 To create a sense of structure to this picture； researchers have depended on a distinction that still underlies the forms of much indigenous visual culture — a distinction between geometric and figurative elements。 為了給這幅圖創造一種結構感，研究者依靠的是以一種大部分本土視覺文化為基礎的區別——即幾何元素與修飾元素之間的區別。
同義 ponent（n。 元素；要素）
embed［im'bed］v。 把…嵌入（或插入）；使深留腦中
搭配 be embedded in 植根於
例句 1。 The pakicetus fossil was found embedded in rocks which formed from river deposits that already were 52 million years old。 人們在河水的沉積物構成的岩石中發現了嵌入其中的巴基鯨化石，而這些沉積物已有5200萬年的歷史了。
2。 When broken open； the stones are showed to involve an assortment of distinctive objects； spherical or irregular in shape and embedded in a dark gray matrix。 當石頭被撬開時，顯示出其中包含的混合物是由獨特物質構成的，有著球形或不規則的形狀，鑲嵌在暗灰色的脈石中。
3。 The wireless modules embedded into laptops make it easier to work。 嵌入筆記本內的無線模組使工作更加便捷。
encode［in'koud］v。 編碼；譯碼
例句 1。 Hearing the stories may lead preschoolers to encode aspects of events which allow them to form memories they can access like adults。 聽故事可以讓學齡前的孩子把事件的各個方面編譯成記憶，這使他們能像成年人那樣回憶起這些記憶。
2。 Older children and adults frequently try to retrieve the names of things they saw； but infants would not have encoded the information verbally。 年紀