甜胶树 、 酸胶树和一些澳大利亚的尤加利树都是产树胶的树.The sweet gum, sour gum, and some Australian eucalyptus trees are gum trees.树和一些澳大利亚的尤加利树都是产树胶的树.The sweet gum gum , and some Australian eucalyptus trees are gum trees.我提醒他们问我关于我对树胶有无过敏性的反映.I...
Emergent light is no longer continuous.透过的光不再是连续的.Rooted hydrophytes, both emergent and submergent, are found in this zone.该区域分布有有根的水生植物, 包括浮游植物和沉水植物.Retrobulbar hematoma was suspected and emergent surgical and medical t...
There has been a concerted campaign against the proposals.人们将采取一致行动反对这些提议.Concerted action alone leads to victory.步调一致才能得胜利.But a concerted effort has begun to improve the quality of the urban air.但是各方已经开始共同努力改善城镇空气质量。...