oral [or = mouth 口；-al→ ] a. ① of the mouth 口的，口部的 /The oral opening in an earthworm is small. 蚯蚓的口腔是很小的。② using speech; spoken 口述的，口頭的 / An oral agreement is not enough. We must have a written promise. 光有口頭的協(xié)議不夠。我們應(yīng)當立一份書面字據(jù)。

下面是-al加在動詞后面構(gòu)成名詞的兩個例子。

arrival [arriv ( ←arrive) v. 到達；-al→] n. the act of arrving; coming 到達；到來 / She is waiting for the arrival of the train. 她正在等火車到站。

denial [deni (← deny) v. 否認；-al→ ] n. the act of denying 否認 / Your denial is fruitless; we have proof. 你否認是徒然無益的，我們有證據(jù)。

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