2. He ignored his fathers injunction to be silent. 他不理睬父亲要他沉默的命令。
3. That means, the mind must be attentive, must be silent. 那意味着,头脑必须是留心的,必须是安静的。
英英解释
adj.
1. marked by absence of sound
2. failing to speak or communicate etc when expected to
3. indicated by necessary connotation though not expressed directly
4. not made to sound
5. having a frequency below or above the range of human audibility
6. unable to speak because of hereditary deafness