Pipe nail
[機] 系管釘, 管心型撐
?? 詞語組成解析
pipe
[pa?p]
n. 管子;煙斗;管樂器;（管風琴的）音管;
vt. 以管輸送;用管樂器演奏;尖聲唱;
vi. 吹奏管樂器;尖叫;尖聲地說（或唱），尖聲啼鳴;[航海] 吹長哨;
nail
[nel]
n. 釘子;指甲，趾甲;釘狀物;納爾;
vt. 釘住;抓住;使固定;揭露;
??? 情景例句
Uh ... I give up.
嗯……我放棄猜。
You say it, but you don't mean it.
口是心非。
You've done very well and made lots of progress.
你功課學得很好，進步很大。