Second teeth
恒牙
🧩 词语组成解析
second
['sɛkənd]
n. 秒;瞬间;次货;第二份食物;
adj. 第二的;次要的;居第二位的;另外的;
adv. 第二;其次;以第二位;
vt. 支持;临时调派;附议;赞成提案;
sec跟随+ond=one第一→跟随第一个之后→第二；秒
teeth
[ti:θ]
n. 牙( tooth的名词复数 );齿;齿状部份;致力于（ 有难度的事）;tooth的复数形式;（组织、法律等）强大有效;不顾危险（或反对等）;
🗣️ 情景例句
He said he'll call you.
他说了他要给你打电话。
I should have studied last night, but I was too tired.
我昨晚应该学习，但是我太累了。
The currents of air that the walls of the ship direct upwards, as well as in the line of its course, are enough to give the great bird with its immense wings sufficient sustenance and progress.
沿船体的上升的气流和沿航线向前的气流给这种巨翼大鸟以足够的浮力和推力。