| 释义 |
Examples:methionine (Met), an essential amino acid—argnine (Arg), an essential amino acid—It is hard change one's essential nature (idiom). You can't change who you are.—isoleucine (Ile), an essential amino acid—fig. the essential point—tryptophan (Trp), an essential amino acid—only when absolutely essential (idiom); as a last resort—valine (Val), an essential amino acid—the ancestor of the long zither family, dating back pre-classical times (playing it was an essential accomplishment of a Confucian gentleman)—it is absolutely essential (follow the above instruction)—essential properties implied or reflected by a notion—phenylalanine (Phe), an essential amino acid—porphyrin (organic chemical essential hemoglobin and chlorophyll)—histidine (His), an essential amino acid—essential balm containing menthol, eucalyptus oil etc, used as a mosquirepellant— |