preacher

詳細解釋：

preach.er

n.（名詞）
One who preaches, especially one who publicly proclaims the gospel for an occupation.
布道者：講道者，尤指以公開傳播福音為職業的人
Alaska A fallen tree or log submerged in a river and creating a hazard for boats.
【阿拉斯加】 沉木：砍倒後浸在河裡並給船隻造成危險的樹或木頭

<注釋>River navigation in America has its own lexicon,including words for hazards encountered in riverboat travel.Large uprooted trees that had drifted down the river and become stuck in the riverbedwere sometimes known by their peculiar and dangerous characteristics.John McPhee writes for theNew Yorker : .One kind . . . known as asawyer, sawed up and down with the vagaries of the current . . .In the Yukon River, such logs—eternally bowing—are known aspreachers. In the Mississippi . . . they were allsnags. .
在美國內河航運業有它自己的專門辭彙，包括用於表示船隻在航行中所遇危險的詞。一些被連根拔起的大樹沿河漂流而下並且固著在河床上，它們都因奇特及危險的特性而為人所知。約翰·麥克菲曾在紐約人 中寫道： .有一種…被稱為 sawyer （漂流木）， 隨著水流的變化擦來擦去…在育空河裡，這種整日裡打躬的木頭被叫做沉木 。 在密西西比河中…它們都被稱為水中沉樹 .