Second moment of area
[机] 断面二次矩
🧩 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
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
area
['ɛrɪə]
n. 地区;区域，范围;面积，平地;领域;
🗣️ 情景例句
I'm sorry but the food was late and it was cold when it got here. I don't think I want to pay.
真抱歉饭菜上晚了，而且它上桌时已经变冷了，所以我不想为此付账。
It is too late to cast anchor when the ship is on the rock.
船触礁后在抛锚，为时已经太晚了。
The two boys are in the river now.
两个男孩现在在河里。