那只小钟丁当丁当地报时.The little clock tinkled out the hours.走路时,他衣袋里的钱币丁当作响.Coins in his pocket jingled as he walked.吃东西的时候不要把刀叉弄得丁当作响.Don't clatter your knives andforks while eating....
She carefully noted whether her math problems had pluses or minuses before she began her work.她开始做题前,很细心地看题目数字前是正号还是负号.Let's consider the pluses and minuses of moving house.咱们考虑一下搬家的利弊吧.His new job has several pluse...
幕间休息时，一位身着白衣的金发男孩用长笛为来宾演奏了一支小夜曲。In the interval a blond boy dressed in white serenaded the company on the flute.身穿黑裙白衣的女孩排排坐著,异口同声叫嚷.Girls in dark skirts and white blouses sit in ranks and scream in concert....
电离层是指含有带电物质的空间区域.The ionosphere is that region of space contatining electrically charged species.其上限由电离层的状态而决定.Its upper limit is determined by the conditions in the ionosphere.火箭和人造卫星能够到达电离层以上极远的地方.Rockets and artificia...