我的鱼平均每条重2磅8盎司，还有过两条重8磅的。My fish average 2 lb 8 oz and I've had two eight-pounders.一名8岁男孩儿被流弹打死。An 8-year-old boy was killed by a stray bullet.正确答案在第8页末尾。The correct answers can be found at the bottom of page 8....
The chromogenic reaction between HSCT and silver was studied.研究了氯磺酚偶氮硫代若丹宁(HSCT)与银的显色反应.Chromogenic black - and - white photographic film is a new emergent type of black - and - white film.黑白 染料胶片是继彩色胶片之后发展起来的一种新型黑白胶片品种....