Ferrojacobsite
铁锰尖晶石
🗣️ 情景例句
So, it's virtually risk-free for you.
所以，事实上对您而言，是完全没有风险的。
Elbow grease gives the best polish.
只要功夫深，铁杵磨成针。
Burglar alarms going off at any time of the day or night serve only to annoy passers-by and actually assist burglars to burgle.
防盗警报器在白天和黑夜的任何时候都会响起来，它的作用只是骚扰过路行人，而实际上却帮助窃贼入室行窃。