友情提示：看不懂音變的同學(xué)請聽203-206期，基礎(chǔ)知識不再啰嗦，課程加速前進(jìn)
dent-tooth-tusk

tusk [tʌsk] (k無意）
either of the two long pointed teeth which stick out from the mouth of some animals such as elephants.
n. 長牙；尖頭，尖形物
vt. 以牙刺戳；以長牙掘

denture['dentʃə]
1. an artificial replacement of one or several of the teeth (partial denture), or all of the teeth (full denture) of either or both jaws; dental prosthesis.
2. a set of teeth
n. 齒列，托牙；一副假牙

indent [in'dent, 'indent]
to start a line of print or writing further away from the edge of the page than the other lines
Chiefly British An official requisition or purchase order for goods.
vt. 縮排；印凹痕；【主英】訂(貨)
vi. 切割成鋸齒狀
n. 縮進(jìn)；訂貨單；凹痕；契約

例句
We usually indent the first line of a paragraph.
我們常常把每段的第一行縮排。
The sea indents the coast.
海水將海岸沖擊得凹凸不平。

indenture [in'dentʃə]
A document in duplicate having indented edges
Often indentures A contract binding one party into the service of another for a specified term.
A deed or legal contract executed between two or more parties
To bind into the service of another by indenture
n. 契約；合同
vt. 以契約約束

耶魯公開課 - 金融市場課程節(jié)選
people own bonds without reading the indenture.
債券持有人并不去閱讀契約。

edentulous[i:'dentʃuləs] e=ex=out
lacking teeth; toothless
adj. [脊椎] 缺齒的，[脊椎] 無齒的

edentate[i:'denteit]
Lacking teeth
Of or belonging to the order Edentata, which includes mammals having few or no teeth, such as anteaters, armadillos, and sloths.
A member of the Edentata.
n. [脊椎] 貧齒類動物
adj. 無齒的；貧齒類的；貧齒目的（屬于貧齒目的，包括無齒和少齒的哺乳動物，如食蟻獸、犰狳和樹懶）

趣味單詞

ledger ['ledʒə] 賴著
a book in which items are regularly recorded, especially business activities and money received or paid
n. 總帳，分戶總帳；[會計] 分類帳；帳簿；底帳；（手腳架上的）橫木

耶魯公開課 - 公正課程節(jié)選
On the other hand, there were positive effects and those were added up on the other side of the ledger.
但另一方面，也有正效應(yīng),它們被記在賬目的另一側(cè)。