Alder fly
n. 蜻蜓科的昆虫；昆虫
🧩 词语组成解析
alder
['ɔ:ldə]
n. 桤木;
fly
[flaɪ]
vi. 飞;飞行;（旗）飘荡;过得快;
vt.& vi. 乘（…的）飞机;驾驶（飞机等）;
vt. 驾驶;空运;使飞翔;操作;
n. 苍蝇;（作钓饵的）苍蝇;（裤子的）前裆开口;门帘;
🗣️ 情景例句
How you doing?
你怎么样了？
That's really something.
真了不起。
As a shipbuilder, Cockerell was trying to find a solution to the problem of the wave resistance which wastes a good deal of a surface ship's power and limits its speed.
作为一个船舶技帅，科克雷尔在寻找解决波浪阻力的方法，因为波浪阻力浪费掉了船在水面行驶的大量动力，从而限制了船的速度。