Whistling rale
[醫] 笛音, 飛箭音
?? 詞語組成解析
n. 吹哨, 吹笛；鳴汽笛
n. 羅音, 水泡音\\n[醫] 音
??? 情景例句
Good-bye, Richard, and good luck. See you in two weeks.
再見， Richard， 祝你好運。兩周后見。
Bind the sack before it be full.
做事應適可而止。
The man who had fixed up the air-line was also questioned.
安裝供氣管的那位工人也被提問。