threatening=endangering
technique = method
testify证明=give evidence
toxic=poisonous
unadorned = not decorative
uniform一致的，相同的=without variation
undertake=attempt
vagary反复无常=uncertainties
virtually=almost
vigor=energy
with respect of= in terms of
warranted 有正当理由的， 有保证的 = justified
aggravate 加重，恶化= increase (e.g. aggravate his pain = increase his pain)
approach=move toward.
assertion = strongly statement
central中心的，重要的=essential.
collect=gather
collide=hit each other
counter = oppose
dependable = reliable
deposit=laid down 存储，贮藏，放弃，放下
design=create
dim = decrease
domestic=home
exaggerate==overstate
extol = praise
focal point焦点=centre area
solitary = alone
foster = encourage
however=yet
ignite点燃=set on fire
immoral == improper
inert = motionless
indispensable必不可少的=significant
largely=mostly
mean 平均，卑贱的= average
on the contrary=whereas
paradoxical 似非而是的，似乎矛盾但其实有道理的=seemingly contradictory
