This hillock is only ten feet higher than the horizontal land.这个土岗只比平地高出一丈多.They leveled the hillock to flat ground and began to grow crops.他们削平了乱土岗,开始种庄稼.The children are playing on the hillock.孩子们正在小土堆上玩....
the sheath around an electric cable电线护皮He drew his sword from its sheath.他拔剑出鞘.This suit of clothing is more inexpensive than that sheath.这套衣服比那套便宜....
Olivia's face convulsed in a series of twitches...奥利维娅的脸上一阵抽搐。Olivia's face convulsed in a series of twitches.奥利维娅的脸上一阵抽搐。BCEF ( 50,100 mg · kg ~ - 1 ) could distinctly increase the head - twitch number in the ...