We organize them. We subdivide these into units of two for example, groups of two like this or we have an undifferentiated stream like this.

我们把它们重新组织,把它们分成两个一组,比如像这样的两个一组,或者我们可以有一个没有差别的节奏串,像这样

耶鲁公开课 - 聆听音乐课程节选

And the 2 says that there'll be two in each of your units.

而这个二说明每单元两拍

耶鲁公开课 - 聆听音乐课程节选

There's no reason why these two attributes had to be proportional, but they are proportional and they are equal by choice of units and you can ask, "Is this just an accident or is it part of a big picture?"

我们不知道这两个质量为何成比例,但它们确实成比例,而且如果选择合适的单位还会相等,你会问,"这种情况纯属偶然,还是这只是物理学大体系的冰山一角"

耶鲁公开课 - 基础物理课程节选

Southern Co. and its partners are building two new units where two other other nuclear reactors now reside.

FORBES: Connect

They also found two kitchen timer units, two toggle switches attached to the timers in a plastic lunch-type box and a vehicle battery in the front passenger foot well.

BBC: Londonderry mortars: Two men remanded in custody

They will be joined by two more units, with another two going to nearby North Luffenham, to become one of seven regional centres, the MoD announced.

BBC: Army bases get ?180m investment in Rutland