Unknow
vt. 不知道或不了解
🗣️ 情景例句
Save your voices.
留着点嗓子。
Are you watching TV now?
你在看电视吗？
Litter baskets have been placed under the trees, but people still throw their rubbish everywhere.
树下都已设置了废物筐，但是人们仍到处扔垃圾。