It tires not, nor does it boast of its power;
它既不疲勞，也不炫耀自己的飛翔力；
新概念英語第四冊
Lesson 23 Bird flight
?? 句中詞匯解析
從本句中提取的重要詞匯
vt. 自夸，自吹自擂;夸口說;以有…而自豪;自負有;
n. 夸口，自負;自負的事物，引以為傲的東西;自夸的話;揚言;
?? 褒死他（諧音）：褒死他- 吹牛 自夸 boas(boss老板)+t(他):老板他 吹牛 船上(boat)扭腰(S): 自夸 吹噓
"I don't want to boast, but I can actually speak six languages."
不是我吹噓，我確實能講六種語言。
近義：pose, rhodomontade, rodomontade, showboat, splurge, strut
反義：meekness, bashfulness, unaffectedness, pudendum, decorum
n. [機]動力，功率;力量;政權，權力;強國，大國;
vt. 運轉;用發動機發動;使…有力量;
vi. 靠動力行進;快速行進;
adj. 權力的;機械能的，電動的;用電力（或動力）發動的;
"The engine is being specially adapted to increase its power."
正在對這臺引擎進行改裝以增加它的功率.
近義：move, operate, activate, actuate, energise, energize
反義：incapacity, powerlessness, weariness, impotency, impotentness, impossibility