Basetone
低音
🗣️ 情景例句
I care about more lockers for the teachers.
我关心教师要有更多的储物柜。
He should see the doctor.
他应该去看医生。
The second marks the arrival of transverse vibrations which travel more slowly and arrive several minutes after the first.
然后记录下的是横向波的到达，横向波比纵向波传播得慢，在纵向波到达几分钟后才能到达。