较老的岩层渐渐风化.The older strata gradually disintegrate.岩层中有证据表明，该地区在15,000年前曾经非常干旱。Contained within the rock strata is evidence that the region was intensely dry 15,000 years ago.这一岩层中有大量燧石.This layer of rock contains a lot o...
Needs assessment is crucial if the hospital is to deliver effective health care.医院要提供有效的卫生保健，需求评估是关键。Collaborate with other assessors in an effort to better understand the assessment.与其他评估者合作以更好地理解评估结果.The tests are supp...
他在步枪口上安好了刺刀。He fixed a bayonet to the end of his rifle.枪口依然指着我。The bore of the gun remained fixed on me.那只老虎倒在了猎人的枪口下.The tiger fell to the hunter's gun....