Dinner was in two sittings.

晚餐有两个就餐时段。

We have had several preliminary sittings in various poses.

我们已经预拍了几种不同的姿势。

The portrait was completed after six sittings.

这幅画模特儿坐了六次才画完。

The artist wants you to give him six sittings.

那画家要你来六次坐着供他画像。

The dining hall is small, so there are two sittings for lunch.

饭厅很小， 所以午饭分两批吃。