?
查询技巧:
1、输入单个单词准确查询。
2、使用%模糊查询,匹配任意长度字符:
   %a    以a结尾的单词;
   ab%    以ab开头的单词;
   %ac%    含有ac的单词。
3、使用_模糊查询,匹配单个任意字符:
   _a_    三位且a在中间的单词;
   _ad    三位且ad结尾的单词;
   ac_    三位且ac开头的单词;
   _a    两位且a结尾的单词;
   a_    两位且a开头的单词。
4、带连字符-的单词,需含-字符才能模糊查询,如well-know需输入 well-% 。
5、在手机键盘上,如果g上有%和v上有_,则可长按输入。

damp down
四级

美 / dæmp daʊn /
na. (用灰把火)封上

1. His hand moved to his mouth as he tried to damp down the panic.
他用手捂住了嘴,试图使惊恐的情绪平静下来。
2. Difficulties did not damp down his enthusiasm for study, and he would try his best to realize his dream.
困难没有熄灭他的学习热情,他会尽力实现自己的梦想。
3. Nothing can damp down his spirits!
没有什么可以破坏他的兴致!
4. We'll damp down the fire for the night.
我们在晚上要炉火封起来。
5. We may damp down the fire furnace for the night.
我们可以把火炉子封上过夜。