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impressive 给人深刻印象的 She serves as an impressive reminder of the great ships of the past. 它有力地提醒着人们不要忘记过去那些不平凡的帆船。 One day he saw Lincoln -a tall,shambling man, 有一天他看见了林肯--
A typical racing sailboat has many parts such as the mast, boom, hull, keel and rudder. Mainly there are five types of racing sailboat. Respectively they are: 帆船主要由船体、桅杆、稳向板或
It's no secret that men tend to see younger women as more attractive, but according to a graph based on data from OKCupid?dating profiles, women tend to be most attracted to men who are around their same age. But the case is drastically different for
vibration 振动 sound 音 tone 音(乐音) musical tone 乐音 noise 噪音 acoustics 声学 psychoacoustics 心理声学 frequency 频率 intensity 强度 time 时间 wave form 波形 pitch 音高 loudness 响度 duration 时值 timbre 音色 (tone
vibration 振动 sound 音 tone 音(乐音) musical tone 乐音 noise 噪音 acoustics 声学 psychoacoustics 心理声学 frequency 频率 intensity 强度 time 时间 wave form 波形 pitch 音高 loudness 响度 duration 时值 timbre 音色 (tone