latch on

US /lætʃ ɑːn/
UK /lætʃ ɑːn/
"latch on" picture
1.

理解, 領會

to understand something completely

:
It took him a while to latch on to the new concept.
他花了一段時間才理解這個新概念。
The students quickly latched on to the teacher's instructions.
學生們很快就領會了老師的指示。
2.

抓住, 附著

to become attached to or fix oneself firmly to something

:
The baby latched on to her mother's finger.
嬰兒抓住了媽媽的手指。
The dog latched on to the bone and wouldn't let go.
咬住骨頭不放。