代理: to act on behalf of sb in a responsible position, to act as an agent or proxy, surrogate, (computing) proxy...
前者: the former...
上流: upper class...
悄悄: quietly, secretly, stealthily, quiet, worried, Taiwan pr....
铺路: to pave (with paving stones), to lay a road, to lay the groundwork (for sth), to give a present to sb to ensure success...
无知: ignorant, ignorance...
重型: heavy, heavy duty, large caliber...