it has to develop (partly by means of touch) the ability to judge roughly three-dimensonal distances.
兒童必須發展（部分通過觸覺）粗略判斷三維空間距離的能力。
新概念英語第四冊
lesson 31 The sculptor speaks
?? 句中詞匯解析
從本句中提取的重要詞匯
vi. 發展;生長;形成;發達 ;
vt. 發展;開發;研制;沖洗（膠片）;
?? de相反+velop蓋上→不阻止，不掩蓋→發展，形成，開發
"to develop a strategy for dealing with unemployment"
制訂解決失業問題的對策
近義：urbanize, cultivate, evolve, expand, fabricate, amplify
反義：accomplish, climax, complete, crown, finalize, stanch
adv. 在一定程度上;部分地;不完全地;半;
?? part部分+ly表副詞 →部份地
"Some people are unwilling to attend the classes partly because of the cost involved."
有些人不愿來上課，部分原因是所需的費用問題。
近義：part, partially
反義：off, outright, plumb, quite, roundly, thoroughly
n. 能力，資格;能耐，才能;
?? -ability 后綴,表示能力,合適性##-ility 后綴;表示”意義,有能力”
"The system has the ability to run more than one program at the same time."
該系統能夠同時運行一個以上的程序。
近義：aptitude, aptness, intelligence, knack, potential, skilfulness
反義：impotence, inability, incapability, incompetence, incompetency, invalidity
n. 方法（ mean的名詞復數）;手段;收入;財富;
v. 意味著（ mean的第三人稱單數）;引起;打算或注定要某人成為或做某事;
"The inquiry is by no means cut and dried."
調查之事遠未蓋棺定論。
近義：approach, manner, method, mode, process, strategy
vt. 觸摸;使某物與…輕輕接觸;吃或喝，嘗;[數]與…相切;
n. 觸摸，碰;觸覺，觸感;修飾，潤色;痕跡;
vi. 接觸;聯系;
?? 十條(t)輪船(ou)上的長椅(ch)前后 接觸， 聯系在一起 偷(tou)吃(ch-chi)的人在 觸摸包子
"They embraced and promised to keep in touch."
他們互相擁抱，許諾將保持聯系。
近義：reference, discuss, impact, impinge, impress, influence
反義：indurate, inure, steel, temper, harden