As it is only six feet across, it is barely noticeable.
僅6英尺寬，很難被發現。
新概念英語第三冊
Lesson 42 Modern cavemen
?? 句中詞匯解析
從本句中提取的重要詞匯
prep. 穿過;橫穿，橫過;與…交叉;在…對面;
adv. 橫過，越過;在對面;交叉;斜對面;
?? cro, cru =cross,表示”十字形,交叉”
"The only access to the farmhouse is across the fields."
去那農舍的唯一通路是穿過田野。
近義：through, athwart, on, per, thru, to
adv. 僅僅，勉強，好容易才;幾乎不，幾乎沒有;赤裸裸地，無遮蔽地;公然地，露骨地，公開地;
?? bare 光的+ ly...的→ 僅僅,只不過,幾乎不
"Her voice was barely audible above the noise."
一片嘈雜，她的聲音只能勉強聽得見。
近義：about, approximately, insufficiently, nearly, nigh, practically
adj. 顯而易見的，明顯的;引人注目的，令人矚目的;顯著的，重要的;可以察覺的;
?? notice注意,表示行為+able 可...的 → adj. 引人注目的, 值得注意的
"This effect is particularly noticeable in younger patients."
這種作用在年輕一些的病人身上尤為明顯。
近義：appreciable, notable, noted, noteworthy, observable, perceivable
反義：indiscernible, invisible, undiscernible, unnoticeable, unperceivable