您要找的是不是:
n. 风险,危险(risk复数) | v. 冒…危险...
v. (日、月、星)升起;价格上涨;起身(r...
里氏海豚 ; 花纹海豚 ; 灰海豚属
瑞氏海豚
灰海豚
Risso's dolphins are often seen around Cornwall, although not as frequently as bottlenose and common dolphins.
BBC: Dead rare dolphin and whale found
Days later a Risso's dolphin calf was discovered less than quarter of a mile away (about 402m).
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。