All of them kept a straight face when they heard the non funny joke.
听到这个并不好笑的笑话，他们都板着脸。
However, except the ordinary commercial risk, they have to face the unexpectable non-commercial risk.
除了要面临一般的商业风险外，还必须面临难以预料的非商业风险。
However, except the ordinary commercial risk, they have to face the unexpectable non-commercial risk.
除了要面临一般的商业风险外，还必须面临难以预料的非商业风险。
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