1.silkworm cocoon 蚕茧

例句：Extracting silk fibroin and sericin by inflating silkworm cocoon belongs to state Two-top-one-high-quality project.
膨化蚕茧提取丝素及丝胶蛋白技术，属国家“双高一优”项目zm3SG*@DEhCUq。

2.remote region 偏远地区

例句：Villagers in a remote region of Laos that has neither electricity nor telephone connections are being wired up to the Internet.
在老挝的一个既不通电也不通电话的偏僻地区，村民们现在可以登陆互联网了pr8f(K)sj~~。

3.blood sample 血样

例句：The number of red and white corpuscles in a blood sample.
血样中的红细胞和白细胞的数量R0c9xMvAk_n4w!k(CL|!。

4.no need for 没有必要

例句：There's no need for you to stay.
你不需要呆在这儿了4|!O&0*N[%k.|txIZ*#R。