无心木

Trench: The solider that trenches to protect themselves against enemy fire or attack.
Undertake: I will undertake the responsibility of feeding your dogs while you are away.
                   He always undertakes more than he can do.
Batter: There is someone battering at the door, you’d better let him in.
Clutch: The mother clutches her baby in her arms.
Contemplate: The police contemplated various kinds of trouble at the football match between two universities.