n.羞怯;膽怯
You may set his silence down to his shyness. 你可以把他的沉默歸因于羞怯。
Rudeness is just a front for her shyness. 她的粗魯只是為了掩飾她的羞怯。
Her only fault is excessive shyness. 她唯一的毛病是過分膽怯。