VAD comes from Latin Verb vadere "to go" , 其变体形式VAS来源于 vadere的分词形式vasus(d->s), From PIE root *wadh-, 注: 古英语wadan也是来源于古印欧词根*wadh, 所以WAD与VAD属于同源词, 均表示to go(走).
VAD/VAS思维导图
VAD/VAS相关词汇:
pervade [pɚ'ved] <TEM8> vt. 遍及；弥漫
[拆] per(through全部) vad(to go) e-->全部走遍-->弥漫; 遍及
COLLINS: v-t if something pervades a place or thing, it is a noticeable feature throughout it. 弥漫; 充满 [正式]
拓展: pervasion [pɚ'veʒən] n. 渗透；扩散；普及；流行 cultural pervasion 文化渗透 pervasive [pɚ'vesɪv] adj. 普遍的；到处渗透的；流行的
e.g. According to conservatives, harmful violence pervades a lot of television programming. 保守主义认为, 有害的暴力行为渗透到了很多电视节目中.
invade [ɪn'ved] <CET4 TEM4> vt. 侵略；侵袭；侵扰；涌入 vi. 侵略；侵入；侵袭；侵犯
[拆] in(in里面) vad(to go) e-->走进别人的领域-->侵略
COLLINS: V-T/V-I to invade a country means to enter it by force with an army. 侵入; V-T if you say that people or animals invade a place, you mean that they enter it in large numbers, often in a way that is unpleasant or difficult to deal with. 拥入
拓展: invasion [ɪn'veʒn] n. 入侵，侵略；侵袭；侵犯 invader [ɪn'vedɚ] n. 侵略者；侵入物 invasive [ɪn'vesɪv] adj. 侵略性的，攻击性的；（尤指植物或疾病）侵入的，侵袭的，扩散的；（医疗手术中）器械或其他物体进入身体或体腔内的，切入的；（尤指行动或感觉）侵犯隐私的，唐突的，烦扰的 noninvasive [ˌnɒnɪn'veɪsɪv] adj. 非侵袭的；非侵害的
e.g. city invaded by tourist 游客大量涌入城市
evade [ɪ'ved] <CET6 TEM8> vt. 逃避；规避；逃脱 vi. 逃避；规避；逃脱
[拆] e(out) vad(to go) e --> 走出去,离开 --> 逃避
COLLINS: v-t if you evade something, you find a way of not doing something that you really ought to do. 逃避; v-t if you evade a question or a topic, you avoid talking about it or dealing with it. 回避 (问题、话题)
拓展: evasion [ɪ'veʒn] n. 逃避；回避；借口 evasive [ɪ'vesɪv] adj. 逃避的；托辞的；推托的
e.g. By his own admission, he evaded paying taxes as a florida real-estate speculator. 据他自己承认，他作为佛罗里达房地产投机商时逃过税
wade [wed] <CET6 TEM8> vi. 跋涉 vt. 涉水；费力行走 n. 跋涉；可涉水而过的地方
COLLINS: v-i if you wade through something that makes it difficult to walk, usually water or mud, you walk through it. 蹚 (过水、泥等); v-i to wade through a lot of documents or pieces of information means to spend a lot of time and effort reading them or dealing with them. 费时费力地啃读
e.g. It has taken a long time to wade through the "incredible volume" of evidence. 已经花费了很长时间来研读这宗“卷帙浩瀚”的证据
waddle ['wɑdl] <TEM8> v. 摇摇摆摆地走，蹒跚而行 n. 蹒跚，摇摆的步子
[注]: waddle为wade的反复性动词, 一种常见构词形式 wad dle
COLLINS: v-i to waddle somewhere means to walk there with short, quick steps, swinging slightly from side to side. a person or animal that waddles usually has short legs and a fat body. 蹒跚行走
e.g. Mcginnis pushed himself laboriously out of the chair and waddled to the window. 麦金尼斯吃力地从椅子上站起来，蹒跚走到了窗前
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