Intertrabecula
间小梁
🗣️ 情景例句
we need to put together volunteers
我们需要募集义工
He reads a book every day.
他每天都读一本书。
While two detectives were keeping guard at the door, two others opened the parcel.
这时两个侦探把住门口，另外两个侦探打开了包裹。