Flash or strobe light lets you photograph in dark places without having to increase your camera's ISO setting or use a tripod, as long as the subject is within the range of your light.

有了闪光灯，你就可以不用增加照相机的ISO刻度，或使用三脚架的情况下就可以在暗处拍照，只要拍摄物在闪光灯的有效范围里。

youdao

Achievement goal orientations is the leading subject of study in achievement motivation, and it is the extension of the study in goal setting.

成就目标导向是成就动机研究的前沿课题，是目标设置研究的延伸。

youdao

Achievement goals theory is the advance subject of achievement motivation and the extension of the study on goal setting.

成就目标理论是成就动机研究的前沿课题，是目标设置研究的延伸。

youdao

The extent of setting varies greatly from subject to subject.

BBC: Setting, streaming - how schools teach