请去寻找那些不变的、或不应改变的事物：
But e-bikes containing lithium-ion batteries are a newer challenge. "When a battery fails, it doesn't necessarily ignite, it will often produce some off-gases," says Stephen Welch, senior lecturer at the University of Edinburgh's Fire Research Centre. "Those off-gases are toxic and flammable. If they accumulate, you can have an explosion risk."
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bank's overall financial posture (critical considering how banks fail), and to
He wrote his first hit song with his neighbour while still a teenager. Connie Francis recorded and released "Stupid Cupid" in 1958.