170-mile-an-hour winds were clocked on a mountaintop in North Carolina.在北卡罗来纳州一处山顶测得的风速为每小时170英里。She shouted on the mountaintop and listened for the echo.她在山顶上大声喊着,然后聆听着回声.The mountaintop was not powerful enough to count...
他的三角学分数很低.He received a low mark for trigonometry.该山的高度已用三角学测得.The height of the mountain has been determined by trigonometry.恒河三角学洲的地下淤积物中含有砷.The underground sediment of the Ganges Delta contains arsenic....