harm
vt.&n.伤害;损害
argument
n.论点;论据;争论;
replace
vt.取代;接替
hug
n.&vt.拥抱;紧抱
concentrate
vi.专注;专心;集中注意力
concerned
adj.关切的;关心的;担心的;
be concerned with
关心…
rewarding
adj.有益的;有意义的;值得做的;
addition
n.增添;添加
in addition
除此之外