The fungus posed a greater difficulty, as it is often found on Australian wheat and barley and certification of freedom based on pre-shipment testing is required.
真菌的问题较棘手，因为这种真菌在澳大利亚的小麦和大麦中经常被发现。因此，必须根据装运前的检测结果出具有关证书。
The fungus posed a greater difficulty, as it is often found on Australian wheat and barley and certification of freedom based on pre-shipment testing is required.
真菌的问题较棘手，因为这种真菌在澳大利亚的小麦和大麦中经常被发现。因此，必须根据装运前的检测结果出具有关证书。
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