the scientist are to connect the two villages

问题描述:

the scientist are to connect the two villages
A thinking of build a bridge B thinking building a bridge
C thinging about building a bridge D thinking over building a bridge

D
think over 苦思冥想为什么thinking over再三考虑 仔细考虑,其他没有这个意思C不是也有考虑的意思吗有的,但是只是说考虑,没有仔细的意思