Hit the nail on the head-a metaphor for speaking directly and to the point.
Three points into the wood-according to legend, Wang Xizhi wrote on the board, and when the carpenter carved, he found that the handwriting penetrated into the board for three points. Describe that calligraphy is very powerful. Nowadays, the problem of metaphor analysis is very profound.
Hit the nail on the head-Tao: say; Breakthrough: exposure. Finish it in one sentence.
Stab-stab with a short-handled knife. The original metaphor is to identify the goal, be brave and diligent. The latter metaphor is straightforward and does not beat around the bush.
Infiltrate the interior-spur: spur and motivate; Li: The innermost floor. Describe it as practical learning. Also described as thorough analysis, to the point.
Class-class: the total rope of fishing net; Bring it up. Grab the main rope of the net and grab the collar of the clothes. Metaphor grasps the main points and is concise.
The knife cuts the blood-metaphor is ugly, and every sentence pokes the point.
The right medicine-the medicine for the disease. Metaphor is to take effective measures to solve the problem of things.
Concise-complete. Not much to say, but the meaning is there. Describe speaking and writing succinctly.