grab verb
ADV. suddenly
VERB + GRAB try to | manage to He managed to grab a couple of hours' sleep.
PREP. at I grabbed at his arm as he ran past. | by As he walked past the boys, one of them grabbed him by the arm. | from Somebody tried to grab her handbag from her.
PHRASES grab hold of sth He grabbed hold of a handrail to save himself from falling.
You can also check other dicts: grab (English, 中文解释 ), wordnet sense, Collins Definition