She motioned for the locked front doors to be opened.

她打手势示意把锁着的前门打开。

《柯林斯英汉双解大词典》

Train doors have handles on the inside. They are stiff so that they cannot be opened accidentally.

火车车门内侧有把手。把手很紧，这样就不会被意外打开了。

《柯林斯英汉双解大词典》

youdao

They designed a new door that could be opened more quickly.

VOA: special.2009.07.08

However, when that gate is opened, the sodium channel is now going to be incredibly selective and only let through sodium ions and no other type of ion.

但是，当闸门打开的时候，钠离子通道,将会有极高的选择性,不允许除钠离子以外的任何其它离子通过。

麻省理工公开课 - 化学原理课程节选

Should the new territories be opened or closed to slavery.

VOA: special.2009.02.26

Similar units will be opened at prisons across the country in the coming weeks.

BBC: South Africa opens first unit for prison babies

The massive ATLAS detector will be opened up and the hardware inside updated and fixed.

BBC: Higgs boson discovered. What next for CERN laboratory?

Moreover, once the first global tax is imposed, the floodgates will be opened for similar proposals.

FORBES: Should International Bureaucracies Get Taxing Powers or Direct Funding?