plumb
Definition
Straight down or vertical; also, to measure the depth of something.
中文 垂直向下;也指测量某物的深度。
Example
"The arrow fell plumb to the ground."
Straight down or vertical; also, to measure the depth of something.
中文 垂直向下;也指测量某物的深度。
"The arrow fell plumb to the ground."