diff --git a/src/NetHack_3.7/src/bones.c b/src/NetHack_3.7/src/bones.c
index dc0639b..b52cf77 100644
--- a/src/NetHack_3.7/src/bones.c
+++ b/src/NetHack_3.7/src/bones.c
@@ -17,18 +17,22 @@ no_bones_level(d_level *lev)
 {
     s_level *sptr;
 
+    // 如果当前d_level不是gs.save_dlevel，则将当前d_level赋值为gs.save_dlevel
     if (ledger_no(&gs.save_dlevel))
         assign_level(lev, &gs.save_dlevel);
 
-    return (boolean) (((sptr = Is_special(lev)) != 0 && !sptr->boneid)
-                      || !gd.dungeons[lev->dnum].boneid
-                      /* no bones on the last or multiway branch levels
-                         in any dungeon (level 1 isn't multiway) */
-                      || Is_botlevel(lev)
-                      || (Is_branchlev(lev) && lev->dlevel > 1)
-                      /* no bones in the invocation level */
-                      || (In_hell(lev)
-                          && lev->dlevel == dunlevs_in_dungeon(lev) - 1));
+    // 满足以下条件时，返回True，表示该层不能生成骨堆：
+    return (boolean) (
+        // 1. 该层是特殊层，并且没有设置骨堆id
+        ((sptr = Is_special(lev)) != 0 && !sptr->boneid)
+        // 2. 该层所在的地牢中没有设置骨堆id
+        || !gd.dungeons[lev->dnum].boneid
+        // 3. 该层是地牢中的最后一层或多路分支的末端层（除了第一层）
+        || Is_botlevel(lev)
+        || (Is_branchlev(lev) && lev->dlevel > 1)
+        // 4. 该层是地狱入口
+        || (In_hell(lev) && lev->dlevel == dunlevs_in_dungeon(lev) - 1)
+    );
 }
 
 /* Call this function for each fruit object saved in the bones level: it marks
@@ -195,6 +199,7 @@ void
 sanitize_name(char *namebuf)
 {
     int c;
+    // 是否在终端窗口下，且终端不支持8位字符集
     boolean strip_8th_bit = (WINDOWPORT(tty)
                              && !iflags.wc_eight_bit_input);
 
@@ -202,13 +207,16 @@ sanitize_name(char *namebuf)
        only the current player could have left these bones--except
        things like "hearse" and other bones exchange schemes make
        that assumption false */
+
+    // 遍历字符串中的每个字符，进行处理
     while (*namebuf) {
+        // 将字符转换为7位ASCII码值
         c = *namebuf & 0177;
         if (c < ' ' || c == '\177') {
-            /* non-printable or undesirable */
+            /* 非可打印字符或不需要的字符，用'.'代替 */
             *namebuf = '.';
         } else if (c != *namebuf) {
-            /* expected to be printable if user wants such things */
+            /* 如果字符不是可打印字符且用户希望看到可打印字符时，则用'_'代替 */
             if (strip_8th_bit)
                 *namebuf = '_';
         }
@@ -216,6 +224,7 @@ sanitize_name(char *namebuf)
     }
 }
 
+
 /* Give object to a random object-liking monster on or adjacent to x,y
    but skipping hero's location.
    If no such monster, place object on floor at x,y. */
@@ -388,11 +397,15 @@ remove_mon_from_bones(struct monst *mtmp)
 {
     struct permonst *mptr = mtmp->data;
 
+    // If the monster is the Wizard, Medusa, or has specific monster sounds,
+    // or is Vlad, or is the Oracle (with specific condition), remove it from bones.
     if (mtmp->iswiz || mptr == &mons[PM_MEDUSA]
         || mptr->msound == MS_NEMESIS || mptr->msound == MS_LEADER
         || is_Vlad(mtmp) /* mptr == &mons[VLAD_THE_IMPALER] || cham == VLAD */
         || (mptr == &mons[PM_ORACLE] && !fixuporacle(mtmp)))
+    {
         mongone(mtmp);
+    }
 }
 
 /* save bones and possessions of a deceased adventurer */