常: Ⅰ形容词1.(一般; 普通; 平常) ordinary; common; normal 短语和例子反常 unusual; abnormal; 人情之常 natural and normal; 习以为常 be used [accustomed] to sth.2.(不变的; 经常) constant; invariable 短语和例子冬夏常青 remain green thr
延: Ⅰ动词1.(延长) prolong; extend; protract 短语和例子苟延残喘 be on one's last legs; linger on in a steadily worsening condition; 蔓延 spread; 绵延不断 stretch long and unbroken2.(向后推迟) postpone; delay 短语和例子大会遇
