Lockless
a. 無鎖的, 無船閘的
??? 情景例句
The welcome sign over the door.
門上的歡迎標語。
It drives me crazy.
它使我快要發瘋了。
I'll have to ring you back, as I need to have a look at my diary and I haven't got it with me.
我得（等會兒）再給你回電話，因為我要先看看我的日記，而我沒有把它帶在身邊。