“清除”造句
牙斑如果不
清除就会导致牙齿蛀蚀和牙龈疾病。
When not removed, plaque causes tooth decay and gum disease.
他们从上层文职部门
清除了上千名公务员。
They have purged thousands from the upper levels of the civil service.
无法把所有的沙砾都
清除干净。
You'll never quite get rid of every last bit of grit.