双手置于腰部，吸气。Place your hands on the small of your back and breathe in.他浮出水面，大口吸气。He surfaced, gasping for air.医生让我先吸气, 然后全部呼出.The doctor asked me to breathe in, then to breathe out fully....
The teacher clucked sympathetically at the child's story.对那小孩讲述的遭遇，老师啧啧地表示同情。Ducks clucked under the docks with a ducker in duck ducking into the dark.鸭子在码头下面咯咯叫,养鸭人一弯腰隐入黑暗中。Chickens clucked in the garden.鸡在花园里咯咯叫。T...
When deposited , 70 - 80 % of the volume of muddy sediments may be water.泥质沉积物沉积后, 体积的70-80%是水.Loose sediments may be changed into solid sedimentary rocks.松散的沉积物可以变成坚硬的沉积岩.The sediments are detrital.沉积岩为碎屑质.Larix pollen ...