The kids' views on life don't always coincide, but they're not afraid of voicing their opinions.孩子们的人生观并不总是一致,但他们敢于表达自己的观点。Laryngeal Variations for Vowels ; Breathy and Pressed Voicing; Tones; Stress.不同母音的...
那时候,牙科学刚起步,拔牙都不打麻药。In those days, dentistry was basic. Extractions were carried out without anaesthetic.他用过麻药,现在仍眩晕无力.He's still groggy from the anaesthetic.局麻药溶液中加入肾上腺素,使血管收缩.The addition of epinephrine to local an...