... trek艰难跋涉 run into a stone wall遇到困难 fill in 提供最新消息 ...
双语例句
1
Don't ask for a raise now. You'll runintoastonewall.
现在先别要求加薪了,你会碰壁的。
2
This is all very well, but the physicist comes along and shows that you never bump into anything: even when you run your head against astonewall, you do not really touch it.