The infestation of avocado root rot disease is not visually detectable.鳄梨树根腐病的感染用视觉是无法探测出来的.Contrarily , in 10 inflammation and 10 normalbronchial mucosa no detectable MG - Ags were found.10例肺部炎症和10例正常粘膜MG─AgS则均为阴性.Dark ...
她注意到了安脸上露出了苦恼的表情。She was conscious of a troubled expression on Ann's face.他老是被一种叫人苦恼的不安情绪折磨着.He was afflicted always with a gnawing restlessness.他的自私是苦恼的根源.His selfishness was the root of trouble....