It is impossible to give a satisfactory explanation for a pot-holer's motives.
要想對洞穴探險者的動機作出滿意的解釋是不可能的。
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
adj. 不可能的，做不到的;難以忍受的;不會有的，不能相信的;
n. 不可能;不可能的事;
?? im不，無，非+possible可能的→不可能的
"She was such a contrary child—it was impossible to please her."
這孩子老跟人作對，沒法讓她高興。
近義：impracticable, unachievable, unattainable, unfeasible, unreachable, unrealizable
反義：approachable, incidental, likely, obtainable, attainable, open
adj. 令人滿意的;符合要求的;[神]贖罪的;
?? satis足夠，飽足+fact做，制作+ory形容詞后綴→ 令人滿意的
"This arrangement is quite satisfactory, so far as I am concerned."
就我來說, 這樣的安排很好.
近義：appropriate, pleasing, proper, satisfying, acceptable, suitable
反義：insufficient, lacking, lousy, poor, bad, trashy
n. 解釋;說明;辯解;（消除誤會后）和解;
?? explan=explain解釋+ation名詞后綴，表行為 → 說明，解釋
"Her explanation certainly sounded believable."
她的解釋聽起來的確可信。
近義：illustration, interpretation, motive, point, reason, remarks
反義：incoherence, irresolution, mystification, perplexity, bafflement, puzzlement
vt.& vi. 給予;贈送;作出;
vt. 供給;產生;舉辦;（為購買某物或做某事而）支付;
vi. （物體）塌下;讓步;
n. 伸展性，彈性;
?? 給吾(諧音): 給
"We'll give you a few minutes to play through."
我們再給你幾分鐘時間讓你連續打下去.
近義：impart, minister, offer, award, present, procure
反義：attain, procure, purchase, reach, realize, secure