whistling
动词
1.
吹口哨
to make a high sound by forcing air through a small hole or passage, especially through the lips, or through a special device held to the lips:
示例:
•
He whistled as he worked.
在 Lingoland 学习这个单词
吹口哨
to make a high sound by forcing air through a small hole or passage, especially through the lips, or through a special device held to the lips: