这些障碍物对于想要往上游游动的鱼儿来说是致命的。The barriers are lethal to fish trying to swim upstream.他在那里有一栋房子，但在河上游几英里处。He has a house down there but it's miles up river.上游的城市将污水排放到河里。Cities upstream use the river to get rid of sewage....
They all set off in their best bibs and tucher.他们穿得漂漂亮亮的,出发去了.BIBS curriculum focuses on strengthening students'skills in a variety of areas.青苗的课程设置注重发展学生在不同领域的不同技能.But what? Bibs? Socks?但是什么 呢 ?小孩的围裙? 短袜?...
Conservationists are mostly wedded to preserving diversity in nature.自然环境保护主义者大多致力于保持物种的多样性。a meeting of local conservationists当地自然环境保护主义者的会议Conservationists in Chile are concerned over the effect of commercial exploitat...
Springs and rivers that drain into lakes carry dissolved nitrates and phosphates.流入湖中的泉水和河水携带了溶于水的硝酸盐和磷酸盐。Nitrates are chemicals that occur naturally in water and the soil.硝酸盐是水和土壤中自然存在的化学物质。Nitrates leach from the soil ...
The birds were active, whirring and fluttering among the trees.鸟儿们很活跃，在树林中呼呼地飞来飞去。His speeches against corruption may find a sympathetic hearing among some Trinidadians.他关于反腐反贪的讲话可能会赢得一些特立尼达岛居民的支持。The monarchists are a s...
它的叶子在灼热的阳光下微微耷拉着。Its leaves drooped a little in the fierce heat of the sun.用销钉在顶上加固防护网，防止叶子落入。Peg down netting over the top to keep out leaves.玫瑰的叶子因为闹虫害而卷边了。The rose leaves have curled because of an attack by grubs....