It pays to be careful these days. 这年头凡事谨慎点儿比较划算. Better safe than sorry. 防患未然, 胜过事后悔恨. Measure twice and cut once. 三思而后行.
Don't get in too deep. 不要涉水太深, 而无法重返岸头. Look before you leap 勿轻举妄动.
Watch it! You've got a rival there. 当心点儿, 你的死对头在那里. Be careful, accidents can happen 要当心, 意外随时都可能发生.
