Underdriven
受下方传动的, 下部传动的
🗣️ 情景例句
Very few people last in this class for the full hour the very first time.
很少人能够第一次撑完一个小时的课。
This part of the country is very heavily populated.
这个国家这一部分人口很密集。
It was raining heavily and they found that a stream had formed in the field.
雨下得很大，他们发现地上已经形成了一条小溪。