Question

latch 【latch】n.门锁He turned the latch of the door and opened it so gently.他转动门锁轻轻地把门打开。

Accepted Answer

[lætʃ] 
latchcatch for fastening a door or gate; a bar that can be lowered or slid into a groove
When you unlock your front door, you open the latch. A latch is a fastener or lock that you open with a key.
A latch can usually be opened with a key or by turning a knob or lifting a hook or bar. You can also use the word latch as a verb, like when your mom reminds you to latch the front and back doors before you leave for school in the morning. In some places, the word "latch-key" is used to mean "key." The root of latch is the Germanic word læccan, "to grasp or seize."
All forms of 'latch' will appear on average once every 1490 pages.latchunlatched

Front	latch
Pron	[lætʃ]
Back	【latch】 n.门锁 He turned the latch of the door and opened it so gently. 他转动门锁轻轻地把门打开。
Vocab	latchcatch for fastening a door or gate; a bar that can be lowered or slid into a groove When you unlock your front door, you open the latch. A latch is a fastener or lock that you open with a key. A latch can usually be opened with a key or by turning a knob or lifting a hook or bar. You can also use the word latch as a verb, like when your mom reminds you to latch the front and back doors before you leave for school in the morning. In some places, the word "latch-key" is used to mean "key." The root of latch is the Germanic word læccan, "to grasp or seize." All forms of 'latch' will appear on average once every 1490 pages. latch unlatched

Latch Word Door Opened Front Open Lætʃ N.门锁