Travellers on short trips to areas with water supplies of uncertain quality should avoid drinking tapwater, or untreated water from any other source.
短途旅行到水质不保险的地区时，应避免饮用水龙头的水或未经处理任何其他来源的水。
新概念英语第四册
Lesson 38 Water and the traveller
📚 句中词汇解析
从本句中提取的重要词汇
adj. 不确定的;不稳定的;不明确的;无常的;
💡 un不，没有+certain确实的→不确定的，靠不住的
"We didn't have the picnic because the weather was uncertain."
我们没有出去野餐,因为天气变幻莫测.
近义：hesitant, hesitative, imprecise, improbable, inconclusive, indecisive
反义：inarguable, indisputable, indubitable, invariable, irrefragable, irrefutable
n. 质量，品质;美质，优点;才能，能力，技能，素养;品种;
adj. 优质的，高质量的;上流社会的;
💡 qual资格+ity表名词 → n.质量；品质，特性
"The burden of his complaint was that quality was very poor."
他投诉的要点是品质非常差.
近义：manner, mode, nature, way, character, kind
反义：poorness, shoddiness, sleaziness, trashiness
vt. 避开，避免，预防;[法]使无效，撤销，废止;
💡 a=out处于+void空→empty out空出来→避开，避免
"Write clear definitions in order to avoid ambiguity."
释义要写清楚以免产生歧义。
近义：parry, avert, prevent, shirk, shun, sidestep
反义：approach, initiate, launch, start, tackle, wage
n. 根源，本源;源头，水源;原因;提供消息的人;
vt. （从…）获得;发起;向…提供消息;寻求（尤指供货）的来源;
vi. 原料来源;起源;寻求来源;寻求生产商（或提供商）;
💡 source(rise)→泉源；源头
"I've heard from a reliable source that company is running very badly."
我已从一位可靠人士那儿获悉,这家公司经营得非常糟糕.
近义：resort, resource, procedence, provenance, provenience, root
short
[ʃɔːrt]
词频1
词根: sh-
adj. 短的，短暂的;矮的;短缺的;短期的;
adv. 突然;唐突地;简短地;横贯地;
n. 短裤;短路;缺乏;
vt. 故意少给…的零头，骗取;
vi. 短路;
💡 削头”（谐音）削了头人还能不 矮吗？ 网友：双木成林 补充：缩的（谐音），这样就成短的；矮的
"The short story is a difficult art form to master."
短篇小说是一种很难掌握的艺术形式。
近义：abridgment, abbreviation, little, minute, small, squat
反义：lengthened, lengthy, imprudent, intrepid, manful, mettlesome