Mars has an insubstantial atmosphere, consisting almost entirely of carbon dioxide.火星的大气层极其稀薄，几乎全部由二氧化碳构成。an insubstantial construction of wood and glue用木头和胶粘合的简单构造Her limbs were insubstantial, almost transparent.她的四肢非常纤...
为了答谢热情的掌声, 那个声乐家再唱一曲.In appreciation of the enthusiastic applause, vocalist sang an encore.林俊卿是位出色地医生 、 嗓音专家、声乐家.Lin Junqing is an excellent doctor, voice experts and vocalist.史密斯先生是位优秀的声乐家.Mr. Smith is an excellent voca...
With this type of camera, the shutter speed is fixed.对这类相机而言，快门的速度是固定的。With this type of camera, the shutter speed is fixed...对这类相机而言，快门的速度是固定的。There are a few things you should check before pressing the shutter release....