切入點

to cut; to slice; to carve; to mince; to buy wholesale from a supplier; (geometry) tangential; (sports) to drive or slice a ball

To enter; to go into; to join; to become a member of; to receive or take in; to put in; to fall into a state; to be involved in; to conform to.

dot; speck; spot; to touch briefly; to tap; to mark; to select; to order food; to hint; to nod; a small amount; a bit; o'clock; classifier for small amounts