1.rural areas 农村地区

例句:These plants have a tendency to grow in the more rural areas.
这些植物大多生长在偏远的乡村。

2.Since then 从那以后

例句:She had a sort of breakdown some years ago, and since then she has been very shy.
几年前她得了神经衰弱，自那以后就变得十分腼腆。

3.connected with 与...有关

例句:Suicide is often connected with socio-economic deprivation.
自杀经常与社会经济权利的丧失有关。

4.signed off 停止活动；签字

例句:We signed off on the deal this morning.
今天早上我们已经签订了合同。