The tail feathers are dark blue at their bases, shading to pale blue at their tips.尾羽的根部呈深蓝色，到了尾尖就渐变成淡蓝色。Their language is particularly difficult to learn because of its subtle shading of tone and emphasis.他们的语言因为音调和重音上的...
If the entry is listed under shading, the index fails the user.如果该条目列在底纹中, 那么这个索引对于用户来说是失败的.Trees are depicted with blocks of flat colour or shading.树木用单色块来涂绘或处理成阴影部分。The tail feathers are dark blue at their bases, shadi...