12胜4平，切尔西欧战小组／联赛阶段主场16场不败（欧战小组／联赛阶段，切尔西主场16场不败：12胜4平）

Generating concise translations

I want to provide a clear English translation along with a couple of rephrased versions in Chinese. Maybe I should also consider adding a simple format with emojis but keep it light on formatting.

For the English part, I’ll say: "12 wins, 4 draws — Chelsea are unbeaten in 16 home matches in European group/league-stage play."

In Chinese, I could phrase it like: "切尔西在欧战小组赛/联赛阶段主场16场保持不败（12胜4平）." Another option could be: "欧战小组/联赛阶段，切尔西主场16场不败，战绩12胜4平."

If they want more details about the competition, it could be good to specify "European competitions." I'll keep everything concise and avoid any extra files or shell commands.