Use a whistle if one is available.

可能的话，请使用哨子。

youdao

Use a whistle if one is available.

如果可能的话可以用哨子。

youdao

Acoustic retreat signal for fire party is one long blast with signal whistle.

灭火队的声觉撤退信号是一长声声号。

youdao

Acoustic retreat signal for fire party is one long blast with signal whistle.

灭火队的声觉撤退信号是一长声声号。

youdao