Anger is not necessarily the most useful or acceptable reaction to such events.

对于这种事，发火不见得是最有用或最能被接受的反应。

Speed and safety are not necessarily incompatible.

速度和安全未必不相容。

A higher fee does not necessarily mean a better course.

收费更高并不意味着课程就一定更好。

The most desirable properties necessarily command astonishingly high prices.

最值得拥有的财产必然要价不菲。

Tourism is an industry that has a necessarily close connection with governments.

旅游业是与政府有着必然的密切联系的产业。