前些天，找到这个

https://www.amazon.com/dp/B00H7JOWK6?psc=1&ref=ppx_yo2ov_dt_b_product_details

相当于中国的谷维素。

 

还有这个

https://www.amazon.com/dp/B077BQHP4Q/ref=sspa_dk_detail_9?pd_rd_i=B077BQHP4Q&pd_rd_w=lo6zz&pf_rd_p=0c758152-61cd-452f-97a6-17f070f654b8&pd_rd_wg=qPEP8&pf_rd_r=PX5BF61R9RA51RQW3SVX&pd_rd_r=98624f44-76ae-424b-a8ce-6e25ada72cc8&s=hpc&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzVUVDM05ZWUg5NFoyJmVuY3J5cHRlZElkPUEwOTc4NTE3MVAwV043Q0FPM09FWiZlbmNyeXB0ZWRBZElkPUEwNTY1NDMzMktXVEhFVlRTUzMzMyZ3aWRnZXROYW1lPXNwX2RldGFpbCZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1

 

 

其实，最好的办法是找到自我

https://blog.wenxuecity.com/myblog/73054/201807/5028.html