脚印在雪地上留下了一条对角线.Footsteps had scored a diagonal path through the snow.在对角线上等距地标出5点。Mark five points an equal distance apart along the diagonals.画一条对角线,把正方形分成两个三角形.Draw a diagonal line to divide the square into two triangl...
We tried to grow some copper sulphate crystals with our children.我们想跟孩子们一起制作硫酸铜晶体。Adding sulphate to the solution will give a precipitate.将硫酸盐加入该溶液会产生沉淀.More ammonium sulphate solution is being recovered in the process o...
during my freshman year在我一年级期间Jack decided to live in during his freshman year at college.杰克决定大一时住校.It's important for the college freshman to keep his nose clean.对大学新生而言洁身自好是很重要的....
这种石头可碾碎作为筑路材料.This rock can be ground down for road - building material.他们碾碎这些石头用来筑路.They ground this rock up for road building.虫子越受苦, 我就越想碾碎它们.The more the worms writhe, the more I yearn to crush out their entrails!...
鼹鼠的前足非常有力，擅长挖洞。Moles have powerful forefeet for digging.所有病人都作了前足的选择性骨手术.All patients underwent an elective osseous surgical procedure on the forefoot.运动前足量饮水,吃一点健康零食.Drink plenty of water and eat a healthy snack before ...