It has a bottom and a frame, sometimes open at the top.

它有一个底和一个框架，有时顶部敞开。

youdao

You will want to laugh with me. And you will sometimes open.

你会想要同我一起欢笑。

youdao

Her eyes were sometimes open, but she was completely unresponsive, even to pain.

她的眼睛有时是睁开的，但她完全没有反应，有时甚至是痛苦的。

youdao

But farmers sometimes do not find the disease until they cut open a cassava.

VOA: special.2010.06.08

Liberalisation commitments are incomplete, with implementation sometimes open-ended, and important sectors, such as agriculture, often largely excluded.

ECONOMIST: By invitation: Jeffrey Schott

He attributes the initial shift to improvements in street lighting, domestic lighting and a surge in coffee houses - which were sometimes open all night.

BBC: The myth of the eight-hour sleep

In such straits, politicians are sometimes open to new ideas.

ECONOMIST: Why Israelis feel their country is suffering from a malaise