🧩 词语组成解析
n. 船体纵向二阶波振；弹簧现象；弹性装置
cow
[kaʊ]
n. 奶牛，乳牛;母兽;雌（象，鲸等）;<侮辱>对女性的蔑称;
vt. 恐吓;吓唬;威胁;
🗣️ 情景例句
Then an adult must sign for you.
那就必须有一位成年人来替你签字。
This alone made our nine-day trip worthwhile.
光这件事我们9天的旅行就非常值得。
I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也许已经了解到中国在对外贸易中采取了灵活的政策。