自若的

There was a tranquil expression on his face.

他脸上有一种安祥若表情。

With his wonted, collected and stately mien , he crossed the unhallowed threshold.

他摆出平时那种若庄严态度，跨过那个污浊门槛。

She performs the duties of a princess with great aplomb.

她若履行王妃职责。

It was Brently Mallard who entered, a little travel-stained, composedly carrying his gripsack and umbrella.

进来是布兰特雷•马兰德，虽略显旅途劳顿，但若他大旅行包和伞。